1262/3: Birth of John II Grand Komnenos
1280: Successful conspiracy against George Grand Komnenos. John II becomes emperor
1281: Revolt led by the representative of the local aristocracy Papadopoulos. Imprisonment and release of John II
1282: Marriage of John II to Eudokia, daughter of Michael VIII Palaiologos in Constantinople. The title of the Emperor of Trebizond is slihgtly altered
April 1282: Conspiracy of the Trapezuntine aristocracy with the king of Iberia David V. Unsuccessful siege of Trebizond by David V
25 April 1283: Arrival in Trebizond of the imperial couple John II Grand Komnenos and Eudokia Palaiologina
1284: George Grand Komnenos unsuccessfully reclaims his throne and is captured
1284/5: The Amitiotai Turks attack Chalybia. Plunder of the metal mines and the surrounding area
1284/5: Theodora Grand Komnene overthrows her half-brother John II
1287: John II is restored to the throne
1292: Embassy from English King Edward I arrives to the Empire of Trebizond
16 Αυγούστου 1297: Death of John II at Limnia