| John II Megas Komnenos | |
|---|---|
| Emperor and Autocrat of all the East, of the Iberians and of Perateia | |
 Coin depicting John II Megas Komnenos | |
| Emperor of Trebizond | |
| Reign | June 1280 – 16 August 1297 (Briefly deposed by Theodora Megale Komnene 1284–1285) |
| Predecessor | George |
| Successor | Alexios II |
| Died | 16 August 1297 Limnia (modern-day Turkey) |
| Burial | |
| Spouse | Eudokia Palaiologina |
| Issue | Alexios II Megas Komnenos Michael Megas Komnenos |
| Dynasty | Komnenos |
| Father | Manuel I Megas Komnenos |
| Mother | Irene Syrikaina |
John II Megas Komnenos (Greek: Ἰωάννης Μέγας Κομνηνός, Iōannēs Megas Komnēnos) (c. 1262 – 16 August 1297) was Emperor of Trebizond from June 1280 to his death in 1297. He was the youngest son of Emperor Manuel I and his third wife, Irene Syrikaina, a Trapezuntine noblewoman. John succeeded to the throne after his full-brother George was betrayed by his archons on the mountain of Taurezion. It was during his reign that the style of the rulers of Trebizond changed; until then, they claimed the traditional title of the Byzantine emperors, "Emperor and Autocrat of the Romans", but from John II on they changed it to "Emperor and Autocrat of all the East, the Iberians, and the Transmarine Provinces", although Iberia had been lost in the reign of Andronikos I Gidos.[1]
John is the first ruler of Trebizond for whom we know more than a few incidents and hints; there is enough information to compose a connected narrative of the first part of his reign. The chronicle of Michael Panaretos, which is often terse and even cryptic, is relatively full for John's reign, and external sources add further details to Panaretos' account. Emperor John II faced many challenges to his rule, which partly explains his marriage to the daughter of the Byzantine emperor Michael VIII Palaiologos.
This insecurity may explain the sole instance where two emperors of Trebizond appear on the coins of this polity: John and his oldest son, Alexios.[2] By associating himself with his son Alexios on these coins, John may be advertising his choice for his successor.
- ^ William Miller, Trebizond: The last Greek Empire of the Byzantine Era: 1204–1461, 1926 (Chicago: Argonaut, 1969), p. 29
- ^ Otto Retowski, Die Muenzen der Komnenen von Trapezunt, 1911 (Braunschweig: Klinkhardt & Biermann, 1974), pp. 129–131