The Empire of Trebizond wis one of three Byzantine Greek successor states of the Byzantine Empire, along with the Empire of Nicaea and the Despotate of Epirus.

Located at the far northeastern corner of Anatolia, it is the longest surviving of the Byzantine successor states.

The Empire of Nicaea, in 1261, succeedd in retaking Constantinople, extinguishing the feeble Latin Empire.

The Despotate of Epirus slowly disintegrated through the 13th and 14th centuries, coming under the control of the restored Byzantine Empire c. 1340.