after 1254: Birth of George Grand Komnenos
1266: George ascends the throne of Trebizond
1278: George makes use of the title “Emperor of the Romans”. Conflict with Michael VIII Palaiologos and the Mongol khan, Abaga
1280: George is betrayed by members of the local aristocracy and the imperial family and is turned over to the Mongol khan, Abaga
1282: George is set free
1284: George claims his throne again, though unsuccessfully. He is captured by his brother and Emperor of Trebizond, John II Grand Komnenos, and dies in captivity