Prussian Crusade
Encyclopedia
The Prussian Crusade was a series of 13th-century campaigns of Roman Catholic
Roman Catholic Church
The Catholic Church, also known as the Roman Catholic Church, is the world's largest Christian church, with over a billion members. Led by the Pope, it defines its mission as spreading the gospel of Jesus Christ, administering the sacraments and exercising charity...

 crusaders
Crusades
The Crusades were a series of religious wars, blessed by the Pope and the Catholic Church with the main goal of restoring Christian access to the holy places in and near Jerusalem...

, primarily led by the Teutonic Knights
Teutonic Knights
The Order of Brothers of the German House of Saint Mary in Jerusalem , commonly the Teutonic Order , is a German medieval military order, in modern times a purely religious Catholic order...

, to Christianize
Christianization
The historical phenomenon of Christianization is the conversion of individuals to Christianity or the conversion of entire peoples at once...

 the pagan
Prussian mythology
The Prussian mythology was a polytheistic religion of the Old Prussians, indigenous peoples of Prussia before the Prussian Crusade waged by the Teutonic Knights. It was closely related to other Baltic faiths, the Lithuanian and Latvian mythologies. Its myths and legends did not survive as Prussians...

 Old Prussians
Old Prussians
The Old Prussians or Baltic Prussians were an ethnic group, autochthonous Baltic tribes that inhabited Prussia, the lands of the southeastern Baltic Sea in the area around the Vistula and Curonian Lagoons...

. Invited after earlier unsuccessful expeditions against the Prussians by Polish
Poland
Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

 princes, the Teutonic Knights began campaigning against the Balts in 1230. By the end of the century, having endured several Prussian Uprisings
Prussian uprisings
The Prussian uprisings were two major and three smaller uprisings by the Prussians, one of the Baltic tribes, against the Teutonic Knights that took place in the 13th century during the Northern Crusades. The crusading military order, supported by the Popes and Christian Europe, sought to conquer...

, the Knights had established control over Prussia and administered the Prussians through their monastic state
Monastic State of the Teutonic Knights
The State of the Teutonic Order, , also Monastic State of the Teutonic Knights or Ordensstaat , was formed in 1224 during the Northern Crusades, the Teutonic Knights' conquest of the pagan West-Baltic Old Prussians in the 13th century....

.

Early missions and conflicts

Wulfstan of Hedeby
Wulfstan of Hedeby
Wulfstan of Hedeby was a late ninth century traveller and trader. His travel accounts, as well as those of another trader, Ohthere, were included in Alfred the Great's translation of Orosius' Histories...

, an agent of Alfred of Wessex, recorded the seafaring and cattle-herding Prussians as a strong and independent nation. Mieszko I
Mieszko I of Poland
Mieszko I , was a Duke of the Polans from about 960 until his death. A member of the Piast dynasty, he was son of Siemomysł; grandchild of Lestek; father of Bolesław I the Brave, the first crowned King of Poland; likely father of Świętosława , a Nordic Queen; and grandfather of her son, Cnut the...

 of the Polans
Polans (western)
The Polans were a West Slavic tribe, part of the Lechitic group, inhabiting the Warta river basin of the historic Greater Poland region in the 8th century.During the reign of King Svatopluk I of Great Moravia , who subdued the tribes of the Vistulans and Ślężanie...

 tried to extend his realm from land he had just conquered around the mouth of the Oder
Oder
The Oder is a river in Central Europe. It rises in the Czech Republic and flows through western Poland, later forming of the border between Poland and Germany, part of the Oder-Neisse line...

 as far as Prussia. Boleslaw I of Poland
Boleslaw I of Poland
Bolesław I Chrobry , in the past also known as Bolesław I the Great , was a Duke of Poland from 992-1025 and the first King of Poland from 19 April 1025 until his death...

 sent Adalbert of Prague
Adalbert of Prague
This article is about St Adalbert of Prague. For other uses, see Adalbert .Saint Adalbert, Czech: ; , , Czech Roman Catholic saint, a Bishop of Prague and a missionary, was martyred in his efforts to convert the Baltic Prussians. He evangelized Poles and Hungarians. St...

 to preach among the Prussians in 997, but the missionary was killed by the pagans. After some initial success among the Prussians, Adalbert's successor, Bruno of Querfurt
Bruno of Querfurt
Saint Bruno of Querfurt , also known as Brun and Boniface, is a sainted missionary bishop and martyr, who was beheaded near the border of Kievan Rus and Lithuania while trying to spread Christianity in Eastern Europe...

, was also killed in 1009.

The Poles
Poles
thumb|right|180px|The state flag of [[Poland]] as used by Polish government and diplomatic authoritiesThe Polish people, or Poles , are a nation indigenous to Poland. They are united by the Polish language, which belongs to the historical Lechitic subgroup of West Slavic languages of Central Europe...

 waged war with the neighboring Prussians, Sudovians, and Wends
Wends
Wends is a historic name for West Slavs living near Germanic settlement areas. It does not refer to a homogeneous people, but to various peoples, tribes or groups depending on where and when it is used...

 over the following two centuries. While the Poles sought the conversion of the Prussians and control of their land, the Prussians engaged in lucrative raids for slaves in the bordering territories of Chełmno Land
Chełmno Land
Chełmno land or Chełmno region is a historical region of Poland, located in central Poland, bounded by the Vistula and Drwęca rivers....

 and Masovia. Many Prussians nominally accepted baptism
Baptism
In Christianity, baptism is for the majority the rite of admission , almost invariably with the use of water, into the Christian Church generally and also membership of a particular church tradition...

 only to revert to pagan beliefs after hostilities ended. Henry of Sandomierz
Henry of Sandomierz
Henry of Sandomierz was a Duke of Sandomierz since 1138 or 1146 until his death....

 was killed fighting the Prussians in 1166. Boleslav IV and Casimir II each led large armies into Prussia; while Boleslav's forces were defeated in guerilla warfare, Casimir imposed peace until his death in 1194. King Valdemar II
Valdemar II of Denmark
Valdemar II , called Valdemar the Victorious or Valdemar the Conqueror , was the King of Denmark from 1202 until his death in 1241. The nickname Sejr is a later invention and was not used during the King's own lifetime...

 of Denmark
Denmark
Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...

 supported Danish expeditions against Samland
Sambia
Sambia or Samland is a peninsula in the Kaliningrad Oblast of Russia, on the southeastern shore of the Baltic Sea. The Curonian Lagoon and the Vistula Lagoon demarcate the peninsula. Prior to 1945 it formed an important part of East Prussia.-Names:Sambia is named after the Sambians, an extinct...

 until his capture by Henry, Count of Schwerin, in 1223.

In 1206, the Cistercian bishop Christian of Oliva
Christian of Oliva
Christian of Oliva , also Christian of Prussia was the first missionary bishop of Prussia.Christian was born about 1180 in the Duchy of Pomerania, possibly in the area of Chociwel...

, with the support of the King of Denmark and Polish dukes, found a better reception than expected upon his arrival in the war-torn Chełmno Land. Inspired, he travelled to Rome
Rome
Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

 to prepare for a larger mission. When he returned to Chełmno in 1215, however, Christian found the Prussians hostile, possibly out of outrage at the actions of the Sword-Brothers
Livonian Order
The Livonian Order was an autonomous Livonian branch of the Teutonic Order and a member of the Livonian Confederation from 1435–1561. After being defeated by Samogitians in the 1236 Battle of Schaulen , the remnants of the Livonian Brothers of the Sword were incorporated into the Teutonic Knights...

 in Livonia
Livonia
Livonia is a historic region along the eastern shores of the Baltic Sea. It was once the land of the Finnic Livonians inhabiting the principal ancient Livonian County Metsepole with its center at Turaida...

 or fear of Polish expansion. The pagan Prussians invaded Chełmno Land, Masovia, and Pomerellia, besieged Chełmno and Lubawa
Lubawa
Lubawa is a town in the Warmian-Masurian Voivodeship, Poland. It is located in Iława County on the Sandela River, some 18 km southeast of Iława.-History:...

, and forced converts to return to the old beliefs.

Because of the growing intensity of attacks, Pope Honorius III
Pope Honorius III
Pope Honorius III , previously known as Cencio Savelli, was Pope from 1216 to 1227.-Early work:He was born in Rome as son of Aimerico...

 sent a papal bull
Papal bull
A Papal bull is a particular type of letters patent or charter issued by a Pope of the Catholic Church. It is named after the bulla that was appended to the end in order to authenticate it....

 to Christian in March 1217 allowing him to begin preaching a crusade
Crusades
The Crusades were a series of religious wars, blessed by the Pope and the Catholic Church with the main goal of restoring Christian access to the holy places in and near Jerusalem...

 against the militant Prussians. The following year the pagans attacked Chełmno Land and Masovia again, plundering 300 cathedrals and churches. Duke Conrad of Masovia succeeded in expelling the Prussians by paying a huge tribute, which only encouraged the Prussians, however.

Crusade of 1222/23

Honorius III called for a crusade under the leadership of Christian of Oliva and chose as papal legate
Papal legate
A papal legate – from the Latin, authentic Roman title Legatus – is a personal representative of the pope to foreign nations, or to some part of the Catholic Church. He is empowered on matters of Catholic Faith and for the settlement of ecclesiastical matters....

 the Archbishop of Gniezno
Gniezno
Gniezno is a city in central-western Poland, some 50 km east of Poznań, inhabited by about 70,000 people. One of the Piasts' chief cities, it was mentioned by 10th century A.D. sources as the capital of Piast Poland however the first capital of Piast realm was most likely Giecz built around...

, Wincenty I Niałek. German and Polish crusaders began gathering in Masovia in 1219, but serious planning only began in 1222 upon the arrival of nobles such as Duke Henry of Silesia
Henry II the Pious
Henry II the Pious , of the Silesian line of the Piast dynasty was Duke of Silesia at Wrocław and Duke of Kraków and thus High Duke of all Poland as well as Duke of Southern Greater Poland from 1238 until his death. During 1238–1239 he also served as a regent of two other Piast duchies: Sandomierz...

, Archbishop Laurentius of Breslau, and Laurentius of Lebus
Lebus
Lebus is a town in the southeast of the Märkisch-Oderland District in Brandenburg, Germany. It had a population of 3,375 as of 2005. It was the center of the historical region known as Lubusz Land.-Location:...

. Numerous Polish nobles began endowing Christian's Bishopric of Prussia with estates and castles in Chełmno Land during the meantime. The lords agreed that the primary focus was to rebuild the defenses of Chełmno Land, especially Chełmno itself, whose fortress was almost completely rebuilt. By 1223, however, most of the crusaders had left the region, and the Prussians devastated Chełmno Land and Masovia yet again, forcing Duke Conrad to seek refuge in the castle of Płock. The Balts even reached Gdańsk
Gdansk
Gdańsk is a Polish city on the Baltic coast, at the centre of the country's fourth-largest metropolitan area.The city lies on the southern edge of Gdańsk Bay , in a conurbation with the city of Gdynia, spa town of Sopot, and suburban communities, which together form a metropolitan area called the...

 (Danzig) in Pomerellia.

In 1225 or 1228, fourteen north German
Northern Germany
- Geography :The key terrain features of North Germany are the marshes along the coastline of the North Sea and Baltic Sea, and the geest and heaths inland. Also prominent are the low hills of the Baltic Uplands, the ground moraines, end moraines, sandur, glacial valleys, bogs, and Luch...

 knights were recruited by Conrad and Christian to form a military order
Military order
A military order is a Christian society of knights that was founded for crusading, i.e. propagating or defending the faith , either in the Holy Land or against Islam or pagans in Europe...

. First granted the estate of Cedlitz in Kuyavia
Kuyavia
Kujawy , is a historical and ethnographic region in the north-central Poland, situated in the basin of the middle Vistula and upper Noteć Rivers, with its capital in Włocławek.-Etymology:The origin of the name Kujawy was seen differently in history...

 until the completion of a castle at Dobrzyń
Dobrzyn
The terms Dobrzyń and Dobrin may refer to:* Order of Dobrzyń, military order* Golub-Dobrzyń, town in Poland* Dobrzyń nad Wisłą, town in Poland* Dobrzyń, Masovian Voivodeship...

, the group became known as the Order of Dobrzyń
Order of Dobrzyn
The Order of Dobrzyń or Order of Dobrin , also known as the Brothers of Dobrzyń , was a military order created in the borderland of Masovia and Prussia during the 13th century Prussian Crusade to 'defend against Baltic Prussian raids'.In Latin the knights were known as the Fratres Milites Christi...

 (or Dobrin). The Knights of Dobrzyń initially had success driving the Prussians from Chełmno Land, but a pagan counterattack against them and Conrad killed most of the Order. The survivors were granted asylum in Pomerania by Duke Swantopelk II. The Order of Calatrava
Order of Calatrava
The Order of Calatrava was the first military order founded in Castile, but the second to receive papal approval. The papal bull confirming the Order of Calatrava as a Militia was given by Pope Alexander III on September 26, 1164.-Origins and Foundation:...

, granted a base near Gdańsk, was also ineffective.

Invitation of the Teutonic Knights

While in Rome, Christian of Oliva had made the acquaintance of Hermann von Salza
Hermann von Salza
Hermann von Salza was the fourth Grand Master of the Teutonic Knights, serving from 1210 to 1239...

, the Grand Master of the Teutonic Knights
Teutonic Knights
The Order of Brothers of the German House of Saint Mary in Jerusalem , commonly the Teutonic Order , is a German medieval military order, in modern times a purely religious Catholic order...

 from 1209-39. With the permission of Duke Conrad of Masovia and the Masovian nobility, Christian requested aid from the Teutonic Knights against the pagan Prussians in 1226. Stability with the Prussians would then allow Conrad to pursue becoming High Duke of Poland. While Hermann was interested in the Polish offer, his focus was on assisting Emperor Frederick II
Frederick II, Holy Roman Emperor
Frederick II , was one of the most powerful Holy Roman Emperors of the Middle Ages and head of the House of Hohenstaufen. His political and cultural ambitions, based in Sicily and stretching through Italy to Germany, and even to Jerusalem, were enormous...

 with the Fifth Crusade
Fifth Crusade
The Fifth Crusade was an attempt to reacquire Jerusalem and the rest of the Holy Land by first conquering the powerful Ayyubid state in Egypt....

. Because the Teutonic Order had recently been expelled from the Burzenland
Burzenland
The Burzenland is a historic and ethnographic area in southeastern Transylvania, Romania with a mixed population...

 in the Kingdom of Hungary
Kingdom of Hungary
The Kingdom of Hungary comprised present-day Hungary, Slovakia and Croatia , Transylvania , Carpatho Ruthenia , Vojvodina , Burgenland , and other smaller territories surrounding present-day Hungary's borders...

, Hermann also desired greater autonomy for his forces in future endeavors.

Hermann met with Frederick II at Rimini
Rimini
Rimini is a medium-sized city of 142,579 inhabitants in the Emilia-Romagna region of Italy, and capital city of the Province of Rimini. It is located on the Adriatic Sea, on the coast between the rivers Marecchia and Ausa...

 and suggested that the subjugation of the Prussians would make the Holy Roman Empire
Holy Roman Empire
The Holy Roman Empire was a realm that existed from 962 to 1806 in Central Europe.It was ruled by the Holy Roman Emperor. Its character changed during the Middle Ages and the Early Modern period, when the power of the emperor gradually weakened in favour of the princes...

's borders easier to defend against invaders. The Holy Roman Emperor
Holy Roman Emperor
The Holy Roman Emperor is a term used by historians to denote a medieval ruler who, as German King, had also received the title of "Emperor of the Romans" from the Pope...

 gave his approval of the enterprise in the Golden Bull of Rimini
Golden Bull of Rimini
The Golden Bull of Rimini was a Golden Bull issued by Emperor Frederick II, at his court in Rimini in March 1226 to confirm the Teutonic Knights' possessions in Prussia...

 of 1226, granting them Chełmno Land, or Culmerland
Chełmno Land
Chełmno land or Chełmno region is a historical region of Poland, located in central Poland, bounded by the Vistula and Drwęca rivers....

, and any future conquests. The mission to convert the Prussians remained under the command of Bishop Christian of Oliva.

Before beginning the campaign against the Prussians, the Teutonic Knights allegedly signed the Treaty of Kruszwica with the Poles on June 16, 1234, by which the Order was to receive Culmerland and any future conquests, similar to the terms of the Golden Bull of Rimini. The agreement has been disputed by historians; the document has been lost and many Polish historians have doubted its authenticity and the Teutonic Order's territorial claims. From the viewpoint of Duke Conrad, Chełmno was only to be used as a temporary base against the Prussians and future conquests were to be under the authority of the Duke of Masovia. Hermann von Salza saw the document as granting the Order autonomy in all territorial acquisitions, aside from allegiance to the Holy See
Holy See
The Holy See is the episcopal jurisdiction of the Catholic Church in Rome, in which its Bishop is commonly known as the Pope. It is the preeminent episcopal see of the Catholic Church, forming the central government of the Church. As such, diplomatically, and in other spheres the Holy See acts and...

 and the Holy Roman Emperor
Holy Roman Emperor
The Holy Roman Emperor is a term used by historians to denote a medieval ruler who, as German King, had also received the title of "Emperor of the Romans" from the Pope...

. The Golden Bull of Rieti issued by Pope Gregory IX
Pope Gregory IX
Pope Gregory IX, born Ugolino di Conti, was pope from March 19, 1227 to August 22, 1241.The successor of Pope Honorius III , he fully inherited the traditions of Pope Gregory VII and of his uncle Pope Innocent III , and zealously continued their policy of Papal supremacy.-Early life:Ugolino was...

 in 1234 reaffirmed the Order's control of conquered lands, placing them only under the authority of the Holy See
Holy See
The Holy See is the episcopal jurisdiction of the Catholic Church in Rome, in which its Bishop is commonly known as the Pope. It is the preeminent episcopal see of the Catholic Church, forming the central government of the Church. As such, diplomatically, and in other spheres the Holy See acts and...

.

The 14th century chronicler Peter von Dusburg mentioned eleven tribal districts in Prussia: Bartia, Culmerland
Chełmno Land
Chełmno land or Chełmno region is a historical region of Poland, located in central Poland, bounded by the Vistula and Drwęca rivers....

 (formerly under Polish control), Galindia, Nadrovia, Natangia, Pogesania
Pogesania
Pogesanians were one of the eleven Prussian clans mentioned by Peter von Dusburg. The clan lived in Pogesania , a small territory stretched between the Elbląg and Pasłęka rivers. It is now located in the Warmian-Masurian Voivodeship, northern Poland. Pogesanians, as the rest of the Prussians, were...

, Pomesania
Pomesania
Pomesanians were one of the Prussian clans. They lived in Pomesania , a historical region in modern northern Poland, located between the Nogat and Vistula Rivers to the west and the Elbląg River to the east. It is located around the modern towns of Elbląg and Malbork...

, Samland
Sambia
Sambia or Samland is a peninsula in the Kaliningrad Oblast of Russia, on the southeastern shore of the Baltic Sea. The Curonian Lagoon and the Vistula Lagoon demarcate the peninsula. Prior to 1945 it formed an important part of East Prussia.-Names:Sambia is named after the Sambians, an extinct...

, Scalovia
Scalovia
Scalovia was the area originally inhabited by the now extinct Baltic tribe of Skalvians or Scalovians which according to the Chronicon terrae Prussiae of Peter of Dusburg lived to the south of the Curonians, by the lower Memel river, in the times around 1240.The centre of Scalovia was supposed...

, Sudovia
Yotvingians
Yotvingians or Sudovians were a Baltic people with close cultural ties to the Lithuanians and Prussians...

, and Ermland
Warmia
Warmia or Ermland is a region between Pomerelia and Masuria in northeastern Poland. Together with Masuria, it forms the Warmian-Masurian Voivodeship....

. Peter estimated that while most tribes could muster about 2,000 cavalry, Samland could raise 4,000 cavalry and 40,000 infantry, while Sudovia had 6,000 cavalry and "an almost innumerable multitude of other warriors". In contrast, the Prussians of ravaged Culmerland could raise fewer troops than the other tribes. Galindia, a forested wilderness of lakes and rivers, also had a small population to raise troops from. Modern estimates indicate a total Prussian population of 170,000, smaller than that suggested by Peter von Dusburg.

Initial Teutonic campaigns

After receiving or forging the claim to Culmerland in 1230, Hermann dispatched Conrad von Landsberg as his envoy with a small force of seven Teutonic Knights and 70-100 squires and sergeants to Masovia as a vanguard. They took possession of Vogelsang (German
German language
German is a West Germanic language, related to and classified alongside English and Dutch. With an estimated 90 – 98 million native speakers, German is one of the world's major languages and is the most widely-spoken first language in the European Union....

 for "bird song"), a castle being built by Conrad opposite the future Thorn (Toruń)
Torun
Toruń is an ancient city in northern Poland, on the Vistula River. Its population is more than 205,934 as of June 2009. Toruń is one of the oldest cities in Poland. The medieval old town of Toruń is the birthplace of the astronomer Nicolaus Copernicus....

; other sources indicate that two knights constructed Vogelsang in 1229, but were killed by Prussians soon after. This region south of the Vistula
Vistula
The Vistula is the longest and the most important river in Poland, at 1,047 km in length. The watershed area of the Vistula is , of which lies within Poland ....

 River was relatively safe with a mixed Christian and pagan population, and Conrad von Landsberg ordered a small raid against pagans across the Vistula. Led by Hermann Balk
Hermann Balk
Hermann Balk , also known as Hermann von Balk or Hermann Balke, was a Knight-Brother of the Teutonic Order and its first Landmeister, or Provincial Master, in both Prussia and Livonia. From 1219 to 1227, he served as the Deutschmeister in the Order's Province of Alemannia...

, reinforcements numbering twenty knights and 200 sergeants arrived at Vogelsang in 1230 after the castle's completion. Hermann von Salza could not spare any more, as the Order's primary bases of operation were in Outremer
Outremer
Outremer, French for "overseas", was a general name given to the Crusader states established after the First Crusade: the County of Edessa, the Principality of Antioch, the County of Tripoli and especially the Kingdom of Jerusalem...

 and Armenia
Armenia
Armenia , officially the Republic of Armenia , is a landlocked mountainous country in the Caucasus region of Eurasia...

.

While the earlier Polish expeditions had usually marched eastward into the Prussian wilderness, the Order focused in the west to establish fortresses along the Vistula River. They campaigned annually whenever crusading knights from the west arrived. The early campaigns were primarily composed of Polish, German, and Pomeranian crusaders, as well as some Prussian militiamen auxiliaries. The Polish and Pomerellian dukes proved essential through their providing of troops and bases. Most of the secular crusaders would return to their homes after the end of the campaigns, leaving the monastic Teutonic Knights the task of consolidating the gains and garrisoning the newly built forts, most of which were small and made of timber. Some secular Polish knights were granted vacant territories, especially in Culmerland, although most of the conquered territory was retained by the Teutonic Order. Colonists from the Holy Roman Empire began to immigrate eastward, allowing the foundation of a new town each year, many of which were granted Kulm law.

The crusaders began campaigning against the neighboring Pomesanians and their leader Pipin. Advancing from Nessau (Nieszawa)
Nieszawa
Nieszawa is a town and a commune in the Kuyavian-Pomeranian Voivodeship, in north-central Poland. As of June 30, 2004, the town has a population of 2,047 people....

 with the aid of Conrad of Masovia, Balk took control of ruins at modern Toruń
Torun
Toruń is an ancient city in northern Poland, on the Vistula River. Its population is more than 205,934 as of June 2009. Toruń is one of the oldest cities in Poland. The medieval old town of Toruń is the birthplace of the astronomer Nicolaus Copernicus....

 and advanced toward the pagan-occupied Rogów
Rogów
Rogów may refer to the following places:*Rogów, Brzeziny County in Łódź Voivodeship *Rogów, Łęczyca County in Łódź Voivodeship *Rogów, Piotrków County in Łódź Voivodeship...

. A local Prussian captain defected and handed that castle to the crusaders, who then destroyed the Prussian fort of Quercz or Gurske. The defecting captain then tricked Pipin into being captured by the Knights, ending Prussian resistance in the Culmerland. By 1232, the Knights had established or rebuilt fortresses at Culm (Chełmno) and Thorn. Pope Gregory IX called for reinforcements, which included 5,000 veterans under the leadership of the Burgrave
Burgrave
A burgrave is literally the count of a castle or fortified town. The English form is derived through the French from the German Burggraf and Dutch burg- or burch-graeve .* The title is originally equivalent to that of castellan or châtelain, meaning keeper of a castle and/or fortified town...

 of Magdeburg
Magdeburg
Magdeburg , is the largest city and the capital city of the Bundesland of Saxony-Anhalt, Germany. Magdeburg is situated on the Elbe River and was one of the most important medieval cities of Europe....

.

In summer 1233, the Knights led a crusading army of 10,000 and established a fortress at Marienwerder (Kwidzyn)
Kwidzyn
Kwidzyn is a town in northern Poland on the Liwa river, with 40,008 inhabitants . It has been a part of the Pomeranian Voivodeship since 1999, and was previously in the Elbląg Voivodeship . It is the capital of Kwidzyn County.-History:...

 in Pomesania
Pomesania
Pomesanians were one of the Prussian clans. They lived in Pomesania , a historical region in modern northern Poland, located between the Nogat and Vistula Rivers to the west and the Elbląg River to the east. It is located around the modern towns of Elbląg and Malbork...

. The Pomerellian dukes Swantopelk and Sambor supported a smaller army for an invasion of Pogesania
Pogesania
Pogesanians were one of the eleven Prussian clans mentioned by Peter von Dusburg. The clan lived in Pogesania , a small territory stretched between the Elbląg and Pasłęka rivers. It is now located in the Warmian-Masurian Voivodeship, northern Poland. Pogesanians, as the rest of the Prussians, were...

 during the winter of 1233-34. After a close battle, the pagan Pogesanians were routed on the frozen Sirgune River by the arrival of the ducal cavalry, and the battlefield was subsequently known as the "Field of the Dead". The building of a fortress at Rehden (Radzyń Chełmiński stabilized the eastern Culmerland in 1234.

The bishop of Prussia, Christian of Oliva, claimed two-thirds of conquered territory, granting one-third to the Teutonic Order. The papal legate William of Modena
William of Modena
William of Modena , also known as William of Sabina, Guglielmo de Chartreaux, Guglielmo de Savoy, Guillelmus, was an Italian clergyman and papal diplomat. He was frequently appointed a legate, or papal ambassador by the popes Honorius III and Gregory IX, especially in Livonia in the 1220s and in...

 mediated between the two sides, granting the Knights two-thirds but reserving extra rights for the bishop. The Teutonic Knights also sought the incorporation of the small Order of Dobrzyń
Order of Dobrzyn
The Order of Dobrzyń or Order of Dobrin , also known as the Brothers of Dobrzyń , was a military order created in the borderland of Masovia and Prussia during the 13th century Prussian Crusade to 'defend against Baltic Prussian raids'.In Latin the knights were known as the Fratres Milites Christi...

 into the larger Teutonic Order. Conrad of Masovia was furious with this proposal and demanded the return of the Dobrzyń Land
Dobrzyn Land
Dobrzyń Land is a historic region around the town of Dobrzyń nad Wisłą in Poland, east of the Vistula River and south of the Drwęca, where it borders on the Kulmerland...

, which the Knights were reluctant to do; Duke Conrad subsequently refused to aid the crusaders any further. With the approval of the pope and the bishop of Płock, the Teutonic Knights assimilated the Order of Dobrzyń in a bull on April 19, 1235; the displeased Conrad of Masovia had the castle of Dobrzyń returned to him. In 1237 the Teutonic Knights assimilated the Sword-Brothers
Livonian Brothers of the Sword
The Livonian Brothers of the Sword were a military order founded by Bishop Albert of Riga in 1202. Pope Innocent III sanctioned the establishment in 1204. The membership of the order comprised German "warrior monks"...

 or Livonian Order, a military order active in Livonia
Livonia
Livonia is a historic region along the eastern shores of the Baltic Sea. It was once the land of the Finnic Livonians inhabiting the principal ancient Livonian County Metsepole with its center at Turaida...

, after they were nearly wiped out by Lithuanians
Lithuanians
Lithuanians are the Baltic ethnic group native to Lithuania, where they number around 2,765,600 people. Another million or more make up the Lithuanian diaspora, largely found in countries such as the United States, Brazil, Canada, Colombia, Russia, United Kingdom and Ireland. Their native language...

 in the Battle of Saule.

With the support of Henry III, Margrave of Meissen
Henry III, Margrave of Meissen
Henry III, called Henry the Illustrious from the House of Wettin was Margrave of Meissen and last Margrave of Lusatia from 1221 until his death; from 1242 also Landgrave of Thuringia.-Life:Born probably at the Albrechtsburg residence in Meissen, Henry was the youngest son of Margrave Theodoric I...

, in 1236, the crusaders advanced north along both banks of the Vistula and forced the submission of most Pomesanians. Although Henry did not participate in the 1237 campaign against the Pogesanians, the margrave supplied the Order with two large river-boats which defeated the smaller craft used by the Prussian tribes. Near the Prussian settlement of Truso
Truso
Truso, situated on Lake Druzno, was an Old Prussian town near the Baltic Sea just east of the Vistula River. It was one of the trading posts on the Amber Road, and is thought to be the antecedent of the city of Elbląg . In the words of Marija Gimbutas, "the name of the town is the earliest known...

, Elbing (Elbląg)
Elblag
Elbląg is a city in northern Poland with 127,892 inhabitants . It is the capital of Elbląg County and has been assigned to the Warmian-Masurian Voivodeship since 1999. Before then it was the capital of Elbląg Voivodeship and a county seat in Gdańsk Voivodeship...

 was founded with colonists from Lübeck
Lübeck
The Hanseatic City of Lübeck is the second-largest city in Schleswig-Holstein, in northern Germany, and one of the major ports of Germany. It was for several centuries the "capital" of the Hanseatic League and, because of its Brick Gothic architectural heritage, is listed by UNESCO as a World...

, while Christburg (Dzierzgoń)
Dzierzgon
Dzierzgoń is a town in the Pomeranian Voivodeship in Poland. It is located in Sztum County east of Malbork and south of Elbląg on the river Dzierzgoń...

 protected the land east of Marienwerder.

From 1238-40, the Teutonic Knights campaigned against the Bartians
Bartians
The Bartians were an Old Prussian tribe who were among the last pagans of Europe before the Northern Crusades forced their conversion to Christianity...

, Natangians, and Warmians
Warmians
Warmians were one of the Prussian clans. They lived in Warmia , a territory since 1945 largely in Poland. It was situated between the Vistula Lagoon, Łyna and Pasłęka Rivers....

. A small force of crusading knights were slaughtered besieging the Warmian fort of Honeida, leading Marshal Dietrich von Berheim to return with a larger army. When the Warmian commander Kodrune advised that the pagans should surrender and convert, Honeida's own garrison killed him, leading Dietrich to order a successful capture of the fort. The fort on the Vistula Lagoon
Vistula Lagoon
The Vistula Lagoon is a fresh water lagoon on the Baltic Sea separated from Gdańsk Bay by the Vistula Spit. It is sometimes known as the Vistula Bay or Vistula Gulf. The modern German name, Frisches Haff, is derived from an earlier form, Friesisches Haff. Both this term and the earlier Polish...

 was renamed Balga
Balga
Balga was a medieval castle of the Teutonic Knights. Its ruins are in the Pogranichny municipality, Bagrationovsky District in Kaliningrad Oblast, Russia; located on the shore of the Vistula Lagoon north of Mamonovo, about southwest of Kaliningrad....

 and rebuilt in 1239 to protect the Order's territory in Ermeland
Warmia
Warmia or Ermland is a region between Pomerelia and Masuria in northeastern Poland. Together with Masuria, it forms the Warmian-Masurian Voivodeship....

. A Prussian counterattack to reclaim the fort failed, and the local Prussian leader Piopso was killed. Seasonal reinforcements led by Otto I, Duke of Brunswick-Lüneburg
Otto I, Duke of Brunswick-Lüneburg
Otto I of Brunswick-Lüneburg was the first duke of Brunswick-Lüneburg from 1235 until his death. He is called Otto the Child to distinguish him from his uncle, Otto IV, Holy Roman Emperor.-Early years:...

, consolidated Teutonic control over Natangia and Bartia.

In a bull of October 1, 1243, Pope Innocent IV
Pope Innocent IV
Pope Innocent IV , born Sinibaldo Fieschi, was pope from June 25, 1243 until his death in 1254.-Early life:...

 and William of Modena divided Prussia into the Dioceses of Culm, Pomesania
Bishopric of Pomesania
The Bishopric of Pomesania was a diocese in the Prussian regions of Pomesania and Pogesania. It was founded as a Roman Catholic diocese in 1243 by the papal legate William of Modena. The bishops, whose seat was Riesenburg , possessed one-third of the bishopric's territory...

, Ermeland
Archbishopric of Warmia
The Prince-Bishopric of Warmia was a semi independent ecclesiastical state, a Prussian bishopric under the jurisdiction of the Archbishopric of Riga that was a protectorate of the Monastic state of the Teutonic Knights and a protectorate of Kingdom of Poland, later part of the Polish-Lithuanian...

, and Samland
Bishopric of Samland
The Bishopric of Samland was a bishopric in Samland in medieval Prussia. It was founded as a Roman Catholic diocese in 1243 by papal legate William of Modena. Its seat was Königsberg, until 1523 the episcopal residence was in Fischhausen. The bishopric became Lutheran in the 16th century during...

, although the territory of the last had not yet been conquered.

First Prussian Uprising

The Teutonic Knights' further advance into Prussia was slowed by the outbreak of the First Prussian Uprising in 1242. Alarmed by the crusaders' rapid expansion into territory bordering his lands, the Christian Duke Swantopelk of Pomerellia allied with the conquered Prussians and supported an armed rebellion against the crusaders. The Teutonic Order's capacity to resist was weakened, as there were fewer German crusaders arriving and the Polish princes were feuding amongst themselves.

The crusaders' cavalry and crossbow artillery proved overwhelming in level terrain, but the Prussians were more experienced and maneuverable in smaller skirmishes in wooded terrain. While the Prussian and Pomerellian troops captured the majority of the Order's castles and defeated the Knights at Rensen in 1244, they lacked the siege capabilities to finish the Knights off. The Germans used their politics and diplomacy to divide Swantopelk from the Prussians. The Poles sought the Pomerellian prince's territory along the Vistula, while the papal legate, the future Pope Urban IV
Pope Urban IV
Pope Urban IV , born Jacques Pantaléon, was Pope, from 1261 to 1264. He was not a cardinal, and there have been several Popes since him who have not been Cardinals, including Urban V and Urban VI.-Biography:...

, wanted the Christians direct their energies against pagans instead of each other. Swantopelk ceased aiding the Prussians in 1248, while most of the latter agreed to peace in the Treaty of Christburg
Treaty of Christburg
The Treaty of Christburg was a peace treaty signed on February 2, 1249 between the pagan Prussian clans, represented by a papal legate, and the Teutonic Knights...

 in February 1249. The treaty granted civil liberties and considerable autonomy to native converts to Christianity. While the majority of tribes followed the terms of the treaty, intermittent fighting continued until 1253, with the Natangians even defeating the Order at Krücken
Battle of Krücken
The Battle of Krücken was a medieval battle fought in 1249 during the Prussian Crusades between the Teutonic Knights and Prussians, one of the Baltic tribes. In terms of knights killed, it was the fourth largest defeat of the Teutonic Knights in the 13th century.Marshal Heinrich Botel gathered men...

 in November 1249.

Samland

After the western Prussians were pacified by the early 1250s, the Teutonic Knights continued their advance north and east, next facing the Sambians
Sambians
The Sambians were one of the Prussian tribes. They inhabited the peninsula of Sambia, north of the city of Königsberg . Sambians were located in a coastal territory rich in amber and engaged in trade early on . Therefore, they established contacts with foreign nations before any other Prussians...

 of thickly-populated Samland
Sambia
Sambia or Samland is a peninsula in the Kaliningrad Oblast of Russia, on the southeastern shore of the Baltic Sea. The Curonian Lagoon and the Vistula Lagoon demarcate the peninsula. Prior to 1945 it formed an important part of East Prussia.-Names:Sambia is named after the Sambians, an extinct...

. Komtur
Komtur
Komtur was a rank within military orders, especially the Teutonic Knights. In the State of the Teutonic Order, the Komtur was the commander of a basic administrative division called Kommende . A Komtur was responsible for the alimentation of the Knights by the yield from the local estates, he...

 Heinrich Stango of Christburg led an army across the Vistula Lagoon in 1252, with the intention of attacking Romuve
Romuva (temple)
Romuva or Romowe was a pagan worship place in western part of Sambia, one of the regions of the pagan Prussia. In contemporary sources the temple was mentioned only once by Peter von Dusburg in 1326...

. The Sambians defeated the crusaders in battle, however, killing Stango in the process. To replace the fallen soldiers, the pope and Poppo von Osterna
Poppo von Osterna
Poppo von Osterna was the ninth Grand Master of the Teutonic Knights, serving from 1252-56 or 1257.Poppo hailed from a family with rich knightly traditions which resided in Osternohe, just outside Nuremberg in Franconia. He joined the Teutonic Order in 1228 and was one of the first friars to...

, the new Grand Master, began preaching a crusade against the Sambians. In 1253 Poppo and the Provincial Master, Dietrich von Grüningen, as well as the Margrave of Meissen, reduced the rebellious Galindians, but did not severely punish them; the Order was concerned that the Prussians would seek to join Poland if they were pressed too greatly. With the rebellious tribes pacified, Pope Innocent IV directed Dominican
Dominican Order
The Order of Preachers , after the 15th century more commonly known as the Dominican Order or Dominicans, is a Catholic religious order founded by Saint Dominic and approved by Pope Honorius III on 22 December 1216 in France...

 monks to preach the crusade, and the Order sent embassies to the Kings of Hungary
Hungary
Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...

, Bohemia
Bohemia
Bohemia is a historical region in central Europe, occupying the western two-thirds of the traditional Czech Lands. It is located in the contemporary Czech Republic with its capital in Prague...

, and the princes of the Holy Roman Empire
Holy Roman Empire
The Holy Roman Empire was a realm that existed from 962 to 1806 in Central Europe.It was ruled by the Holy Roman Emperor. Its character changed during the Middle Ages and the Early Modern period, when the power of the emperor gradually weakened in favour of the princes...

. While the Order waited for the crusaders to arrive in Prussia, the Livonian branch
Livonian Brothers of the Sword
The Livonian Brothers of the Sword were a military order founded by Bishop Albert of Riga in 1202. Pope Innocent III sanctioned the establishment in 1204. The membership of the order comprised German "warrior monks"...

 founded Memel (Klaipėda)
Klaipeda
Klaipėda is a city in Lithuania situated at the mouth of the Nemunas River where it flows into the Baltic Sea. It is the third largest city in Lithuania and the capital of Klaipėda County....

 along the Curonian Lagoon
Curonian Lagoon
The Curonian Lagoon is separated from the Baltic Sea by the Curonian Spit. Its surface area is . The Neman River supplies about 90% of its inflows; its watershed consists of about 100,450 square kilometers in Lithuania and the Kaliningrad Oblast.-Human history:In the 13th century, the area around...

 to prevent the Samogitians from assisting the Sambians.

The 60,000-strong crusading army which gathered for the campaign included Bohemians and Austrians
Austrians
Austrians are a nation and ethnic group, consisting of the population of the Republic of Austria and its historical predecessor states who share a common Austrian culture and Austrian descent....

 under the command of King Ottokar II of Bohemia
Ottokar II of Bohemia
Ottokar II , called The Iron and Golden King, was the King of Bohemia from 1253 until 1278. He was the Duke of Austria , Styria , Carinthia and Carniola also....

, Moravians
Moravians (ethnic group)
Moravians are the modern West Slavic inhabitants of the historical land of Moravia, the easternmost part of the Czech Republic, which includes the Moravian Slovakia. They speak the two main groups of Moravian dialects , the transitional Bohemian-Moravian dialect subgroup and standard Czech...

 under Bishop Bruno of Olmütz, Saxons
Saxons
The Saxons were a confederation of Germanic tribes originating on the North German plain. The Saxons earliest known area of settlement is Northern Albingia, an area approximately that of modern Holstein...

 under Margrave Otto III of Brandenburg, and a contingent brought by Rudolph of Habsburg
Rudolph I of Germany
Rudolph I was King of the Romans from 1273 until his death. He played a vital role in raising the Habsburg dynasty to a leading position among the Imperial feudal dynasties...

. The Sambians were crushed at the Battle of Rudau
Battle of Rudau
The Battle of Rudau was a medieval pitched battle fought between the Grand Duchy of Lithuania and the Teutonic Knights on February 17 or 18 1370 near Rudau village north of Königsberg...

, and the fort's garrison surrendered quickly and underwent baptism. The crusaders then advanced against Quedenau, Waldau, Caimen, and Tapiau (Gvardeysk)
Gvardeysk
Gvardeysk is a town and the administrative center of Gvardeysky District of Kaliningrad Oblast, Russia, located on the right bank of the Pregolya River east of Kaliningrad. Population: -History:...

; the Sambians who accepted baptism were treated considerately, but those who resisted received no mercy from the crusaders. Samland was conquered in January 1255 in a campaign lasting less than a month. Near the pagan settlement of Tvangste, the Teutonic Knights founded Königsberg
Königsberg
Königsberg was the capital of East Prussia from the Late Middle Ages until 1945 as well as the northernmost and easternmost German city with 286,666 inhabitants . Due to the multicultural society in and around the city, there are several local names for it...

 ("King's Mountain"), named in honor of the Bohemian king. Braunsberg (Braniewo)
Braniewo
Braniewo is a town in northeastern Poland, in the Warmian-Masurian Voivodeship, with a population of 18,068 . It is the capital of Braniewo County...

, possibly named in honor of Bruno of Olmütz or Bruno of Querfurt, was also founded nearby. The Knights built the castle Wehlau (Znamensk)
Znamensk, Kaliningrad Oblast
Znamensk is a settlement in Kaliningrad Oblast, Russia. It is located on the right bank of the Pregolya River at its confluence with the Lava River some 50 km east of Kaliningrad...

 at the junction of the Alle and Pregel Rivers to guard against pagan Sudovian, Nadrovian, and Scalovian attacks on Christian Prussians and Germans in Samland. Thirsko, a Christian Sambian chief, and his son Maidelo were entrusted with Wehlau. With the assistance of Sambian levies, the Teutonic Order advanced further into Natangia, capturing the fortresses of Capostete and Ocktolite near Wohnsdorf. The Natangian leader Godecko and his two sons were killed resisting the advance.

The Great Prussian Uprising (1260–1274)

The Livonian Order had been campaigning into Samogitia
Samogitia
Samogitia is one of the five ethnographic regions of Lithuania. It is located in northwestern Lithuania. Its largest city is Šiauliai/Šiaulē. The region has a long and distinct cultural history, reflected in the existence of the Samogitian dialect...

, which was northeast of the Prussians. The pagan Samogitians
Samogitians
Samogitians are a part of the Lithuanian ethnicity inhabiting the region of Samogitia in Lithuania. Many speak the Samogitian dialect of the Lithuanian language.-History:...

 received a two year truce in 1259, with the Christians expecting the pagans to accept Christianity. In 1259 the Samogitians decided to retain their pagan independence, however. They defeated the Livonian Order at the Battle of Skuodas
Battle of Skuodas
The Battle of Skuodas or Schoden was a medieval battle fought in ca. 1259 near Skuodas in present-day Lithuania during the Northern Crusades. The Samogitian army of 3,000 invaded Courland and on their way back defeated the Livonian Order, killing 33 knights and many more low-rank soldiers...

 in 1259, and then inflicted a crushing defeat on the crusaders in the Battle of Durbe
Battle of Durbe
-External links:**...

 in 1260. The pagan victory inspired the Prussians to rebel again, starting the Great Prussian Uprising the same year. In the minds of the indigenous peoples, the pagan victories reinforced the validity of their pre-Christian beliefs.

Despite their territorial gains in Prussia, the primary emphasis of the Teutonic Knights was still the Holy Land
Holy Land
The Holy Land is a term which in Judaism refers to the Kingdom of Israel as defined in the Tanakh. For Jews, the Land's identifiction of being Holy is defined in Judaism by its differentiation from other lands by virtue of the practice of Judaism often possible only in the Land of Israel...

, and few reinforcements could be spared for the Baltic. The German princes of the Holy Roman Empire were distracted by the imperial succession, and few seasonal crusaders came to the assistance of the Prussian Brothers; the first reinforcements were defeated at Pokarwis
Battle of Pokarwis
The Battle of Pokarwis was a medieval battle fought in several skirmishes between pagan Old Prussians and the crusading Teutonic Knights on January 22, 1261 during the Great Prussian Uprising that followed the failed first Prussian Uprising of 1242-1249....

 in 1261. The Order had most of its Prussian castles destroyed during the early 1260s. Besides Prussia, the pagans also raided Livonia, Poland, and Volhynia
Volhynia
Volhynia, Volynia, or Volyn is a historic region in western Ukraine located between the rivers Prypiat and Southern Bug River, to the north of Galicia and Podolia; the region is named for the former city of Volyn or Velyn, said to have been located on the Southern Bug River, whose name may come...

.

The crusaders began to stem the uprising with the assistance of Albert I, Duke of Brunswick-Lüneburg
Albert I, Duke of Brunswick-Lüneburg
Albert the Tall , of the House of Welf, was Duke of Brunswick-Lüneburg from 1252 to 1269 and the first ruler of the newly created Principality of Brunswick-Wolfenbüttel from 1269 until his death.-Life:...

, and Henry III, Landgrave of Thuringia
Henry III, Margrave of Meissen
Henry III, called Henry the Illustrious from the House of Wettin was Margrave of Meissen and last Margrave of Lusatia from 1221 until his death; from 1242 also Landgrave of Thuringia.-Life:Born probably at the Albrechtsburg residence in Meissen, Henry was the youngest son of Margrave Theodoric I...

, in 1265. In the following year German crusading reinforcements were provided by Margraves Otto III and John I of Brandenburg, and the castle of Brandenburg (Ushakovo)
Ushakovo
Ushakovo may refer to:*Ushakovo, Republic of Bashkortostan, a village in the Republic of Bashkortostan, Russia*Ushakovo, Kaliningrad Oblast, a village in Kaliningrad Oblast, Russia*Ushakovo, Pskov Oblast, a village in Pskov Oblast, Russia...

 was founded in their honor. King Ottokar II of Bohemia briefly returned to Prussia in 1267-68, but was deterred by poor weather, while Margrave Dietrich II of Meissen
Meissen
Meissen is a town of approximately 30,000 about northwest of Dresden on both banks of the Elbe river in the Free State of Saxony, in eastern Germany. Meissen is the home of Meissen porcelain, the Albrechtsburg castle, the Gothic Meissen Cathedral and the Meissen Frauenkirche...

 also campaigned with the Order in 1272. The crusaders gradually killed or forced the surrender of each Prussian tribes' war leader.

As a result of the uprising, many native Prussians lost some of the rights they had received in the Treaty of Christburg and were subsequently reduced to serfdom
Serfdom
Serfdom is the status of peasants under feudalism, specifically relating to Manorialism. It was a condition of bondage or modified slavery which developed primarily during the High Middle Ages in Europe and lasted to the mid-19th century...

. Numerous Prussians fled to the Grand Duchy of Lithuania
Grand Duchy of Lithuania
The Grand Duchy of Lithuania was a European state from the 12th /13th century until 1569 and then as a constituent part of Polish-Lithuanian Commonwealth until 1791 when Constitution of May 3, 1791 abolished it in favor of unitary state. It was founded by the Lithuanians, one of the polytheistic...

 or to Sudovia
Yotvingians
Yotvingians or Sudovians were a Baltic people with close cultural ties to the Lithuanians and Prussians...

, while others were resettled by the crusaders. The tribal chiefs who remained in Prussia became vassals of the Teutonic Knights, who began rebuilding their castles in stone or brick.

Later campaigns

Although the Teutonic Knights' offensive capability was greatly weakened during the Great Pagan Uprising, they did engage in some campaigns against the pagan on their eastern flank. The Bartians, Natangians, and Warmians had ostensibly converted to Christianity, but the Sudovians and Lithuanians to their east remained pagan and continued their border warfare with the Teutonic Knights. Led by Skalmantas
Skomantas of Sudovia
Skomantas, or Komantas was a powerful duke and pagan priest of the Sudovians/Yotvingians, one of the early Baltic tribes Skomantas, or Komantas (in Jatvingian *Gomants or *Komants, in Ruthenian Komat, in Latin Koommat, in German Skomand and Skumand; ca. 1225(?) - after 1285) was a powerful duke...

 during the Great Uprising, the Sudovians sacked Bartenstein (Bartoszyce)
Bartoszyce
Bartoszyce is a town on the Łyna River in northeastern Poland with 25,621 inhabitants . It is the capital of Bartoszyce County within the Warmian-Masurian Voivodeship.-History:...

 in Bartia, which was to be the focal point of their borders. Defenseless against the Sudovians, the Natangians and Bartians allied with the Teutonic Knights for protection, although little assistance could be provided initially. The Christian Natangians clans gathered in 1274 and killed 2,000 of the Sudovian raiders; Grand Master Anno von Sangerhausen recruited Thuringians and Meisseners to complete the Teutonic recovery of Natangia.

Anno's successor as Grand Master, Hartmann von Heldrungen, directed the Provincial Master of Prussia, Conrad von Thierberg the Elder, to attack eastward from Königsberg along the Pregel River to separate the Sudovians from the Nadrovians. Vogt
Vogt
A Vogt ; plural Vögte; Dutch voogd; Danish foged; ; ultimately from Latin [ad]vocatus) in the Holy Roman Empire was the German title of a reeve or advocate, an overlord exerting guardianship or military protection as well as secular justice...

 Theodoric of Samland and his militia sacked two river forts and plundered a large amount of treasure and goods. Theodoric led another crusading force, including Teutonic Knights, 150 sergeants, and Prussian infantry, against another Nadrovian fort. Although the natives attempted to surrender after siege ladders were placed, most of the warriors were slaughtered by the crusaders, with only a few natives surviving to be resettled. Conrad then led the Knights past the destroyed border forts to assault the Nadrovians main redoubt of Kaminiswike, defended by 200 warriors. Most of the natives were killed after the Knights stormed the fortress, and the Nadrovian clans surrendered soon afterward to become auxiliaries of the crusaders.

The Teutonic Knights then used Nadrovia and Memel as bases against Scalovia
Scalovia
Scalovia was the area originally inhabited by the now extinct Baltic tribe of Skalvians or Scalovians which according to the Chronicon terrae Prussiae of Peter of Dusburg lived to the south of the Curonians, by the lower Memel river, in the times around 1240.The centre of Scalovia was supposed...

 on the lower Memel River. Scalovia would then serve as a base against pagan Samogitia, which separated Teutonic Prussia from Teutonic Livonia. Because of this threat, the Lithuanians provided assistance to the pagan Scalovians, and the crusaders and pagans each engaged in border raids to distract enemy forces. Because the pagans were strongly defended in the wilderness, the Teutonic Knights focused on travelling up the Memel River toward the strong pagan fort Ragnit. Theodoric of Samland led 1,000 men in the assault. Artillery fire forced the defenders from the ramparts, allowing the crusaders to storm the walls with ladders and slaughter most of the pagans. Theodoric also captured Romige on the other bank of the Memel. The Scalovians retaliated by sacking Labiau near Königsberg. Conrad von Thierberg escalated the conflict by sending a large raid against Scalovia. Nicholas von Jeroschin documented the crusaders as killing and capturing numerous pagans. When the Scalovian warriors went in pursuit of the captured pagans, Conrad shattered the would-be rescuers in an ambush which killed the pagan leader, Steinegele. Most Scalovian nobles quickly surrendered to the Knights in the battle's aftermath.

The Teutonic Knights planned to advance against Samogitia after conquering Scalovia, but the outbreak of a new rebellion engineered by Skalmantas of the Sudovians delayed the campaign. In 1276-77 the Sudovians and Lithuanians raided Culmerland and burned settlements near the castles of Rehden, Marienwerder, Zantir, and Christburg. Theodoric of Samland was able to convince the Sambians not to rebel, and the Natangians and Warmians followed suit. Conrad von Thierberg the Elder led 1,500 men into Kimenau in summer 1277, and crushed a Sudovian army of 3,000 near the Winse forest. Many Pogesanians fled to the Lithuanians and were resettled at Gardinas
Hrodna
Grodno or Hrodna , is a city in Belarus. It is located on the Neman River , close to the borders of Poland and Lithuania . It has 327,540 inhabitants...

, while the ones who remained in Prussia were resettled by the crusaders, probably near Marienburg (Malbork)
Malbork Castle
The Marienburg Castle in Malbork is by area the largest castle in the world. It was built in Prussia by the Teutonic Knights, a German Roman Catholic religious order of crusaders, in a form of an Ordensburg fortress. The Order named it Marienburg...

. This new brick castle, built to replace Zantir, guarded against further rebellions with Elbing and Christburg. The central Prussian tribes surrendered to the crusaders by 1277.

The crusaders and Sudovians engaged in guerilla warfare, which the Sudovians were particularly adept at. However, they lacked the sheer numbers to deal with their German, Polish, and Volhynian adversaries, and the Sudovian nobility began gradually surrendering one by one. Marshal Conrad von Thierberg the Younger raided Pokima, capturing large amounts of cattle, horses, and prisoners. They then successfully ambushed the 3,000-strong force of pursuing Sudovians, losing only six Christians in the process. In 1280 the Sudovians and Lithuanian invaded Samland, but the alerted Order had fortified their castles and deprived the raiders of provisions. While the pagans were in Samland, Komtur Ulrich Bayer of Tapiau led a devastating counter-raid into Sudovia. The Polish prince Leszek the Black achieved two significant victories over the pagans, securing the Polish border, and Skalmantas fled Sudovia to Lithuania.

In summer 1283, Conrad von Thierberg the Younger was named Provincial Master of Prussia and led a large army into Sudovia, finding little resistance. The Knight Ludwig von Liebenzell, who had once been a captive of the Sudovians, negotiated the surrender of 1,600 Sudovians and their leader Katingerde, who were subsequently resettled in Samland. Most of the remaining Sudovians were redistributed to Pogesania and Samland; Skalmantas was pardoned and allowed to settle at Balga
Balga
Balga was a medieval castle of the Teutonic Knights. Its ruins are in the Pogranichny municipality, Bagrationovsky District in Kaliningrad Oblast, Russia; located on the shore of the Vistula Lagoon north of Mamonovo, about southwest of Kaliningrad....

. Sudovia was left unpopulated, becoming a border wilderness that protected Prussia, Masovia, and Volhynia from the Lithuanians. The Prussians rebelled in short-lived uprisings in 1286 and 1295, but the crusaders firmly controlled the Prussian tribes by the end of 13th century.

The Prussian populace retained many of their traditions and way of life, especially after the Treaty of Christburg
Treaty of Christburg
The Treaty of Christburg was a peace treaty signed on February 2, 1249 between the pagan Prussian clans, represented by a papal legate, and the Teutonic Knights...

 protected the rights of converts. The Prussian uprisings led to the crusaders only applying these rights to the most powerful converts, however, and the pace of conversion slowed. After the Prussians were militarily defeated in the second half of the 13th century, they were gradually subjected to Christianization and cultural assimilation during the following centuries as part of the monastic state of the Teutonic Knights
Monastic State of the Teutonic Knights
The State of the Teutonic Order, , also Monastic State of the Teutonic Knights or Ordensstaat , was formed in 1224 during the Northern Crusades, the Teutonic Knights' conquest of the pagan West-Baltic Old Prussians in the 13th century....

. With the fall of Acre
Acre, Israel
Acre , is a city in the Western Galilee region of northern Israel at the northern extremity of Haifa Bay. Acre is one of the oldest continuously inhabited sites in the country....

 and Outremer
Outremer
Outremer, French for "overseas", was a general name given to the Crusader states established after the First Crusade: the County of Edessa, the Principality of Antioch, the County of Tripoli and especially the Kingdom of Jerusalem...

 and the securing of Prussia, the Order then turned its focus against Christian Pomerellia, which separated Prussia from imperial
Holy Roman Empire
The Holy Roman Empire was a realm that existed from 962 to 1806 in Central Europe.It was ruled by the Holy Roman Emperor. Its character changed during the Middle Ages and the Early Modern period, when the power of the emperor gradually weakened in favour of the princes...

 Pomerania
Duchy of Pomerania
The Duchy of Pomerania was a duchy in Pomerania on the southern coast of the Baltic Sea, ruled by dukes of the House of Pomerania ....

, and against pagan Lithuania.
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