Treaty of Königsberg (1656)
Encyclopedia
The Treaty of Königsberg was concluded on 7 January (O.S.
Old Style and New Style dates
Old Style and New Style are used in English language historical studies either to indicate that the start of the Julian year has been adjusted to start on 1 January even though documents written at the time use a different start of year ; or to indicate that a date conforms to the Julian...

) / 17 January (N.S.
Old Style and New Style dates
Old Style and New Style are used in English language historical studies either to indicate that the start of the Julian year has been adjusted to start on 1 January even though documents written at the time use a different start of year ; or to indicate that a date conforms to the Julian...

) 1656 during the Second Northern War
Second Northern War
The Second Northern War was fought between Sweden and its adversaries the Polish–Lithuanian Commonwealth , Russia , Brandenburg-Prussia , the Habsburg Monarchy and Denmark–Norway...

. Frederick William I, the "Great Elector" of Brandenburg and duke of Prussia, was forced to join the Swedish camp and became a Swedish vassal for the Duchy of Prussia and Ermland (Ermeland, Warmia). In a second treaty, negotiated on 24 Februar 1656 in Königsberg, Frederick William I concluded a defensive alliance with France.

Background

In 1655, the rapid progress of the Swedish campaign in Poland-Lithuania
Polish-Lithuanian Commonwealth
The Polish–Lithuanian Commonwealth was a dualistic state of Poland and Lithuania ruled by a common monarch. It was the largest and one of the most populous countries of 16th- and 17th‑century Europe with some and a multi-ethnic population of 11 million at its peak in the early 17th century...

 made Brandenburgian elector Frederick William I worried about his Duchy of Prussia, which he held as a Polish fief. Frederick William I, who maintained an army of 14,000 men in Brandenburg, marched his army to Prussia and in the Treaty of Rinsk
Treaty of Rinsk
The treaty of Rinsk, concluded on 2 November / 12 November 1655, was a Ducal-Royal Prussian alliance during the Second Northern War. Frederick William I, Elector of Brandenburg and duke of Prussia, and the nobles of Royal Prussia agreed to allow Brandenburgian garrisons in Royal Prussia to defend...

 of 12 November concluded a defensive alliance with the Royal Prussia
Royal Prussia
Royal Prussia was a Region of the Kingdom of Poland and of the Polish-Lithuanian Commonwealth . Polish Prussia included Pomerelia, Chełmno Land , Malbork Voivodeship , Gdańsk , Toruń , and Elbląg . It is distinguished from Ducal Prussia...

n nobility, who maintained an army consisting of 600 troops raised by the Prussian estates
Prussian estates
The Prussian estates were representative bodies of Prussia, first created by the Monastic state of Teutonic Prussia in the 14th century but later becoming a devolved legislature for Royal Prussia within the Kingdom of Poland...

 and a levy of 3,000 to 4,000 men. In addition, 3,600 troops of the regular army and mercenaries were stationed in Royal Prussia.

Charles X Gustav
Charles X Gustav of Sweden
Charles X Gustav also Carl Gustav, was King of Sweden from 1654 until his death. He was the son of John Casimir, Count Palatine of Zweibrücken-Kleeburg and Catherine of Sweden. After his father's death he also succeeded him as Pfalzgraf. He was married to Hedwig Eleonora of Holstein-Gottorp, who...

 had meanwhile conquered nearly all of Poland and exiled the Polish king John II Casimir Vasa. From occupied Cracow, he turned northwards in October to subdue Royal Prussia, where he intended to establish a Swedish province. By December, all of Royal Prussia was occupied by Sweden except for Danzig (Gdańsk), which resisted throughout the war, and Marienburg
Malbork
Malbork is a town in northern Poland in the Żuławy region , with 38,478 inhabitants . Situated in the Pomeranian Voivodeship since 1999, it was previously assigned to Elbląg Voivodeship...

 (Malbork), which only fell in March 1656. Thorn
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....

 (Toruń) and Elbing
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...

 (Elbląg) had not participated in the alliance of Rinsk and surrendered to Sweden already in November. Now Charles X Gustav turned eastwards and marched his troops into Ducal Prussia, following the withdrawing army of Frederick William I. While field marshal
Field Marshal
Field Marshal is a military rank. Traditionally, it is the highest military rank in an army.-Etymology:The origin of the rank of field marshal dates to the early Middle Ages, originally meaning the keeper of the king's horses , from the time of the early Frankish kings.-Usage and hierarchical...

 Count Georg Friedrich von Waldeck urged the "Great Elector" to confront the Swedish forces, the latter chose not to fight and accept the Swedish terms in January.

Treaty between Brandenburg-Prussia and Sweden

Frederick William I took the Duchy of Prussia as a fief from Charles X Gustav
Charles X Gustav of Sweden
Charles X Gustav also Carl Gustav, was King of Sweden from 1654 until his death. He was the son of John Casimir, Count Palatine of Zweibrücken-Kleeburg and Catherine of Sweden. After his father's death he also succeeded him as Pfalzgraf. He was married to Hedwig Eleonora of Holstein-Gottorp, who...

, and had to provide him with troops. Without Swedish permission, the Electorate of Brandenburg would not maintain a navy in the Baltic Sea
Baltic Sea
The Baltic Sea is a brackish mediterranean sea located in Northern Europe, from 53°N to 66°N latitude and from 20°E to 26°E longitude. It is bounded by the Scandinavian Peninsula, the mainland of Europe, and the Danish islands. It drains into the Kattegat by way of the Øresund, the Great Belt and...

. In return, Frederick William I received Ermland.

In article XVII, the Lutheran
Lutheranism
Lutheranism is a major branch of Western Christianity that identifies with the theology of Martin Luther, a German reformer. Luther's efforts to reform the theology and practice of the church launched the Protestant Reformation...

 Swedish king further obliged the Calvinist
Calvinism
Calvinism is a Protestant theological system and an approach to the Christian life...

 elector to grant religious freedom to the Lutherans in Prussia.

Treaty between Brandenburg-Prussia and France

The Franco-Prussian treaty included a defensive alliance between the parties. Drafted on 24 February, it was ratified on 12 April by Louis in Paris and on 24 October by Frederick William in Königsberg.

Consequences

The treaty of Königsberg was followed by the Treaty of Marienburg
Treaty of Marienburg
The treaty of Marienburg, concluded on 29 June 1656, was a Brandenburg-Prussian – Swedish alliance during the Second Northern War.In January 1656, Charles X Gustav of Sweden had made Frederick William I, Elector of Brandenburg, his vassal for the Duchy of Prussia...

 on 25 June, when the tide of the war had turned against Sweden and Brandenburg-Prussia
Brandenburg-Prussia
Brandenburg-Prussia is the historiographic denomination for the Early Modern realm of the Brandenburgian Hohenzollerns between 1618 and 1701. Based in the Electorate of Brandenburg, the main branch of the Hohenzollern intermarried with the branch ruling the Duchy of Prussia, and secured succession...

 advanced to the position of a Swedish ally.
Still a vassal of Charles X Gustav for Prussia, Frederick William I entered the war and the combined Swedish-Brandenburgian forces defeated the Polish army in the Battle of Warsaw
Battle of Warsaw (1656)
The Battle of Warsaw was a battle which took place near Warsaw on , between the armies of the Polish-Lithuanian Commonwealth on the one hand and of Sweden and Brandenburg on the other. It was a major battle in the Second Northern War between Poland and Sweden in the period 1655–1660, also known as...

 in July. This made the Polish king John II Casimir Vasa, from whom Frederick William I had to take Prussia as a fief prior to Königsberg, say that once the Tartars had the Swedes for breakfeast, he would arrest the elector "where neither sun nor moon will shine". In August, John II Casimir had Wincenty Korwin Gosiewski
Wincenty Korwin Gosiewski
Wincenty Korwin Gosiewski was a Polish-Lithuanian politician and military commander, a notable member of the szlachta.-Life:...

 invade Prussia to "punish Frederick William for his treachery". Thirteen towns and 250 villages were burned until Gosiewski was expelled in October, and the campaign was terrifying enough to persist in local folklore until the 20th century.

Hard-pressed himself by several countries entering the war against him, Charles X Gustav in January 1656 agreed with Frederick William I on the Treaty of Labiau
Treaty of Labiau
The Treaty of Labiau was a treaty signed between Frederick William I, Elector of Brandenburg and Charles X Gustav of Sweden on 10 November / 20 November 1656 in Labiau...

, which altered the terms of Königsberg in a way that the Hohenzollern
House of Hohenzollern
The House of Hohenzollern is a noble family and royal dynasty of electors, kings and emperors of Prussia, Germany and Romania. It originated in the area around the town of Hechingen in Swabia during the 11th century. They took their name from their ancestral home, the Burg Hohenzollern castle near...

 electors were freed of Swedish vassalage for the Prussian duchy at the cost of Ermland and a more active participation in the war. In the subsequent treaties of Wehlau and Bromberg
Treaty of Bromberg
The Treaty of Bromberg or Treaty of Bydgoszcz was a treaty between John II Casimir of Poland and Elector Frederick William of Brandenburg-Prussia, ratified at Bromberg on 6 November 1657...

, John II Casimir confirmed Frederick William I's sovereignty in Prussia after the latter abandoned Sweden in the war.

External links

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