Byzantine-Mongol alliance
Encyclopedia
A Byzantine–Mongol alliance occurred during the end of the 13th and the beginning of the 14th century between the Byzantine Empire
Byzantine Empire
The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...

 and the Mongol Empire
Mongol Empire
The Mongol Empire , initially named as Greater Mongol State was a great empire during the 13th and 14th centuries...

. Byzantium actually tried to maintain friendly relations with both the Golden Horde
Golden Horde
The Golden Horde was a Mongol and later Turkicized khanate that formed the north-western sector of the Mongol Empire...

 and the Ilkhanate
Ilkhanate
The Ilkhanate, also spelled Il-khanate , was a Mongol khanate established in Azerbaijan and Persia in the 13th century, considered a part of the Mongol Empire...

 realms, who were often at war with each other. The alliance involved numerous exchanges of presents, military collaboration and marital links, but dissolved in the middle of the 14th century.

Diplomatic overtures

Soon after the Battle of Kose Dag
Battle of Köse Dag
The Battle of Köse Dağ was fought between the Seljuk Turks of Anatolia and the Mongols on June 26, 1243 at the defile of Köse Dağ, a location between Erzincan and Gümüşhane in northeast Anatolia, modern Turkey, and ended in a decisive Mongol victory....

 in 1243, the Empire of Trebizond
Empire of Trebizond
The Empire of Trebizond, founded in April 1204, was one of three Byzantine successor states of the Byzantine Empire. However, the creation of the Empire of Trebizond was not directly related to the capture of Constantinople by the Fourth Crusade, rather it had broken away from the Byzantine Empire...

 surrendered to the Mongol Empire
Mongol Empire
The Mongol Empire , initially named as Greater Mongol State was a great empire during the 13th and 14th centuries...

 while the court of Nicaea
Empire of Nicaea
The Empire of Nicaea was the largest of the three Byzantine Greek successor states founded by the aristocracy of the Byzantine Empire that fled after Constantinople was occupied by Western European and Venetian forces during the Fourth Crusade...

 put its fortresses in order. In the early 1250s, the Latin emperor of Constantinople Baldwin II
Baldwin II of Constantinople
Baldwin II of Courtenay was the last emperor of the Latin Empire of Constantinople.He was a younger son of Yolanda of Flanders, sister of the first two emperors, Baldwin I and Henry of Flanders...

 sent an embassy to Mongolia in the person of the knight Baudoin de Hainaut, who, following his return, met in Constantinople
Constantinople
Constantinople was the capital of the Roman, Eastern Roman, Byzantine, Latin, and Ottoman Empires. Throughout most of the Middle Ages, Constantinople was Europe's largest and wealthiest city.-Names:...

 with the departing William of Rubruck
William of Rubruck
William of Rubruck was a Flemish Franciscan missionary and explorer. His account is one of the masterpieces of medieval geographical literature comparable to that of Marco Polo....

.
William of Rubruck also noted that he met an envoy of John III Doukas Vatatzes
John III Doukas Vatatzes
John III Doukas Vatatzes, Latinized as Ducas Vatatzes |Nymphaion]]) was emperor of Nicaea 1221–1254.-Life:John Doukas Vatatzes was probably the son of the general Basileios Vatatzes, Duke of Thrace, who died in 1193, and his wife, an unnamed daughter of Isaakios Angelos and cousin of the Emperors...

, emperor of Nicaea
Empire of Nicaea
The Empire of Nicaea was the largest of the three Byzantine Greek successor states founded by the aristocracy of the Byzantine Empire that fled after Constantinople was occupied by Western European and Venetian forces during the Fourth Crusade...

, at the court of Mongke Khan
Möngke Khan
Möngke Khan , born Möngke, , was the fourth Great Khan of the Mongol Empire from July 1, 1251 – August 11, 1259. He was the first Great Khan from the Toluid line, and made significant reforms to improve the administration of the Empire during his reign...

 in circa 1253.

Alliance under Michael VIII (1263–1282)

Emperor Michael VIII Palaiologos
Michael VIII Palaiologos
Michael VIII Palaiologos or Palaeologus reigned as Byzantine Emperor 1259–1282. Michael VIII was the founder of the Palaiologan dynasty that would rule the Byzantine Empire until the Fall of Constantinople in 1453...

, after re-establishing Byzantine Imperial rule, established an alliance with the Mongols, who themselves were highly favourable to Christianity, many of them being Nestorian Christians.

He signed a treaty in 1263 with the Mongol Khan of the Kipchak (the Golden Horde
Golden Horde
The Golden Horde was a Mongol and later Turkicized khanate that formed the north-western sector of the Mongol Empire...

), and he married two of his daughters (conceived through a mistress, a Diplovatatzina) to Mongol kings: Euphrosyne Palaiologina, who married Nogai Khan
Nogai Khan
Nogai , also called Isa Nogai, was a general and de facto ruler of the Golden Horde and a great-great-grandson of Genghis Khan. His grandfather was Baul/Teval Khan, the 7th son of Jochi...

 of the Golden Horde
Golden Horde
The Golden Horde was a Mongol and later Turkicized khanate that formed the north-western sector of the Mongol Empire...

, and Maria Palaiologina, who married Abaqa Khan
Abaqa Khan
Abaqa Khan , also Abaga , or Abagha Khan, was the second Mongol ruler of the Persian Ilkhanate. The son of Hulagu Khan and Yesuncin Khatun, he reigned from 1265–1282 and was succeeded by his brother Tekuder Khan...

 of Ilkhanid Persia.

According to a 1267 letter by Pope Clement IV
Pope Clement IV
Pope Clement IV , born Gui Faucoi called in later life le Gros , was elected Pope February 5, 1265, in a conclave held at Perugia that took four months, while cardinals argued over whether to call in Charles of Anjou, the youngest brother of Louis IX of France...

 from Viterbo
Viterbo
See also Viterbo, Texas and Viterbo UniversityViterbo is an ancient city and comune in the Lazio region of central Italy, the capital of the province of Viterbo. It is approximately 80 driving / 80 walking kilometers north of GRA on the Via Cassia, and it is surrounded by the Monti Cimini and...

, Abaqa had agreed to combine forces with his father-in-law Michael VIII to help the Latins in the Holy Land, in preparation for the Eighth Crusade
Eighth Crusade
The Eighth Crusade was a crusade launched by Louis IX, King of France, in 1270. The Eighth Crusade is sometimes counted as the Seventh, if the Fifth and Sixth Crusades of Frederick II are counted as a single crusade...

 (the second of Louis IX
Louis IX of France
Louis IX , commonly Saint Louis, was King of France from 1226 until his death. He was also styled Louis II, Count of Artois from 1226 to 1237. Born at Poissy, near Paris, he was an eighth-generation descendant of Hugh Capet, and thus a member of the House of Capet, and the son of Louis VIII and...

):
In 1265 Berke Khan sent the Golden Horde army under Noghai
Nogai Khan
Nogai , also called Isa Nogai, was a general and de facto ruler of the Golden Horde and a great-great-grandson of Genghis Khan. His grandfather was Baul/Teval Khan, the 7th son of Jochi...

 to Thrace, prompting to force the Byzantine to release the Mamluk
Mamluk
A Mamluk was a soldier of slave origin, who were predominantly Cumans/Kipchaks The "mamluk phenomenon", as David Ayalon dubbed the creation of the specific warrior...

 envoy and the former Seljuk
Seljuq dynasty
The Seljuq ; were a Turco-Persian Sunni Muslim dynasty that ruled parts of Central Asia and the Middle East from the 11th to 14th centuries...

 Sultan Kaykaus II
Kaykaus II
Kaykaus II or Kayka'us II was the eldest of three sons of Kaykhusraw II. He was a youth at the time of his father’s death in 1246 and could do little to prevent the Mongol subjugation of Anatolia. For most of his tenure as the Seljuq Sultan of Rûm, he shared the throne with one or both of his...

. According to Egyptian sources, Michael agreed to send fabric
Fabric
A fabric is a textile material, short for "textile fabric".Fabric may also refer to:*Fabric , the spatial and geometric configuration of elements within a rock*Fabric , a nightclub in London, England...

s to the Mongol Khan
Khan (title)
Khan is an originally Altaic and subsequently Central Asian title for a sovereign or military ruler, widely used by medieval nomadic Turko-Mongol tribes living to the north of China. 'Khan' is also seen as a title in the Xianbei confederation for their chief between 283 and 289...

 in Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

. When Michael realized the importance of the Mongols and became an ally of Noghai, he used his help to defend himself against Bulgaria
Second Bulgarian Empire
The Second Bulgarian Empire was a medieval Bulgarian state which existed between 1185 and 1396 . A successor of the First Bulgarian Empire, it reached the peak of its power under Kaloyan and Ivan Asen II before gradually being conquered by the Ottomans in the late 14th-early 15th century...

 when it tried to attack the Byzantine Empire in 1273 and 1279. A group of 4,000 Mongol soldiers were dispatched to Constantinople in 1282, just before the death of Michael, to fight against the despot of Thessaly
Thessaly
Thessaly is a traditional geographical region and an administrative region of Greece, comprising most of the ancient region of the same name. Before the Greek Dark Ages, Thessaly was known as Aeolia, and appears thus in Homer's Odyssey....

.

Alliance under Andronikos II (1282–1328)

After 1295, Andronikos II
Andronikos II Palaiologos
Andronikos II Palaiologos , Latinized as Andronicus II Palaeologus, was Byzantine emperor from 1282 to 1328. He was the eldest surviving son of Michael VIII Palaiologos and Theodora Doukaina Vatatzina, grandniece of John III Doukas Vatatzes...

 offered Ghazan a marital alliance, in exchange for Mongol help to fight against the Turcomans
Turkmen people
The Turkmen are a Turkic people located primarily in the Central Asian states of Turkmenistan, Afghanistan, and northeastern Iran. They speak the Turkmen language, which is classified as a part of the Western Oghuz branch of the Turkic languages family together with Turkish, Azerbaijani, Qashqai,...

 at the Oriental frontier of the Byzantine Empire. Ghazan accepted the offer and promised to stop the incursions. The death of Ghazan in 1308 was mourned by the Byzantines.

This alliance would continue under Ghazan's successor, Oljeitu. In 1305 Ilkhan Oljeitu promised Andronicus II 40,000 men, and in 1308 dispatched 30,000 men to recover many Byzantine towns in Bithynia
Bithynia
Bithynia was an ancient region, kingdom and Roman province in the northwest of Asia Minor, adjoining the Propontis, the Thracian Bosporus and the Euxine .-Description:...

. Andronicus II gave daughters in marriage to Toqto'a
Toqta
Tokhta was a khan of the Golden Horde, son of Mengu-Timur and great grandson of Batu Khan.His name "Tokhtokh" means "hold/holding" in the Mongolian language....

, as well as his successor Uzbek
Uzbeg Khan
Sultan Mohammed Öz-Beg, better known as Uzbeg or Ozbeg , was the longest-reigning khan of the Golden Horde, under whose rule the state reached its zenith...

 (1312–1341), but relations turned sour at the end of Andonicus's reign and the Mongols mounted raids on Thrace
Thrace
Thrace is a historical and geographic area in southeast Europe. As a geographical concept, Thrace designates a region bounded by the Balkan Mountains on the north, Rhodope Mountains and the Aegean Sea on the south, and by the Black Sea and the Sea of Marmara on the east...

 between 1320 to 1324, until the Byzantine port of Vicina Macaria was occupied by the Mongols.

End of friendly relations

Under Andronikos III
Andronikos III
Andronikos III may refer to:* Andronikos III Palaiologos , Byzantine emperor 1328–1341* Andronikos III of Trebizond , Emperor of Trebizond from 1330 to 1332...

 relations seem to have turned even more conflictual. In 1341, the Mongols planned to attack Constantinople, and Andronikos III had to send an embassy to stop the attack.

Sources

  • Gilbert Dagron, Brigitte Mondrain, Vincent Deroche, and Jean-Claude Cheynet. XXe Congrès international des études Byzantines: Collège de France - Sorbonne, 19 - 25 août 2001: pré-actes: XXe Congrès international des études Byzantines, Collège de France-Sorbonne, 19-25 août 2001. Comité d'organization du XXe Congrès international des études Byzantines, Collège de France, 2001, ISBN 2951715803.
  • Heath, Ian and McBride, Angus. Byzantine Armies: AD 1118–1461. Osprey Publishing, 1995, ISBN 1855323478.
  • Nicol, Donald MacGillivray. The Last Centuries of Byzantium, 1261–1453. Cambridge University Press, 1993, ISBN 0521439914.
  • Oxford Dictionary of Byzantium
    Oxford Dictionary of Byzantium
    The Oxford Dictionary of Byzantium is a three volume historical dictionary published by the English Oxford University Press. It contains comprehensive information in English on topics relating to the Byzantine Empire. It was edited by the late Dr. Alexander Kazhdan, and was first published in 1991...

    . Oxford University Press, 1991.
  • Cheynet, Jean-Claude and Vannier, Jean-François. "Les premiers Paléologues". Etudes prosopographiques. Publications de la Sorbonne, 1986, ISBN 2859441107.
  • Richard, Jean. Histoire des Croisades [History of the Crusades]. Paris: Editions Fayard, 1996.
  • Jackson, Peter. The Mongols and the West, 1221-1410. Pearson Longman, 2005, ISBN 0582368960.
  • Luisetto, Frédéric. Arméniens & autres Chrétiens d'Orient sous la domination Mongole (in French). Librairie Orientaliste Paul Geuthner S.A., 2007, ISBN 9782705337919.
  • Sicker, Martin. The Islamic World in Ascendancy: From the Arab Conquests to the Siege of Vienna. Greenwood Publishing Group, 2000, ISBN 0275968928.
  • Canal, Denis-Armand and Runciman, Steven. Histoire des Croisades [History of the Crusades]. Editions Dagorno, 1998, ISBN 2910019454.
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