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1200 CE
1210 CE
1220 CE
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1290 CE
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1460 CE
1202 CE - 1204 CE: The Fourth Crusade is formed to recapture Jerusalem for Christendom. Instead, the Crusaders attack Constantinople.
1204 CE: Empire of Trebizond is founded by Alexios I Megas Komnenos and his brother David, with help from their aunt, Queen Tamar of Georgia.
1204 CE - 1461 CE: The Empire of Trebizond rules along the southern coast of the Black Sea.
1204 CE - 1222 CE: Reign of Alexios I Megas Komnenos, ruler of the Empire of Trebizond.
1214 CE: An army from the Empire of Nicaea defeats the Empire of Trebizond, marking the latter's furthest point of western expansion.
1214 CE: The Seljuks capture Sinope from the Empire of Trebizond.
1238 CE - 1263 CE: Reign of Manuel I Megas Komnenos, ruler of the Empire of Trebizond.
1254 CE: Manuel I Megas Komnenos recaptures the city of Sinope for the Empire of Trebizond.
1280 CE - 1297 CE: Reign of John I Megas Komnenos, ruler of the Empire of Trebizond.
1282 CE: John II Megas Komenos of the Empire of Trebizond formally renounces his claim to the Byzantine Empire.
1297 CE - 1330 CE: Reign of Alexios II Megas Komnenos, ruler of the Empire of Trebizond.
1340 CE - 1349 CE: Trapezuntine Civil War.
1340 CE - 1341 CE: Reign of Irene Palaiologina, ruler of the Empire of Trebizond.
1341 CE - 1342 CE: Reign of Anna Anachoutlou, ruler of the Empire of Trebizond.
1342 CE - 1344 CE: Reign of John III Megas Komnenos, ruler of the Empire of Trebizond.
1344 CE - 1349 CE: Reign of Michael I Megas Komnenos, ruler of the Empire of Trebizond.
1349 CE - 1390 CE: Reign of Alexios III Megas Komnenos, ruler of the Empire of Trebizond.
1442 CE: Ottoman Sultan Murad II besieges Trebizond.
1456 CE: Ottoman forces besiege Trebizond.
1460 CE - 1461 CE: Reign of David Megas Komnenos, last ruler of the Empire of Trebizond.
1461 CE: Ottoman forces under Sultan Mehmed II capture Trebizond, ending the Empire of Trebizond.
1461 CE: David Megas Komnenos, the last Emperor of Trebizond, is deposed by the Ottomans.