The siege of Trebizond in 1222–1223 was an unsuccessful siege of Trebizond, the capital of the namesake empire, by the Seljuq Turks under a certain Melik. According to the late 14th-century Synopsis of Saint Eugenius of John Lazaropoulos, the city was close to being captured, but was saved by an unusually severe storm. The Seljuq assaults were repulsed, and their army was annihilated on its retreat through the attacks of the Matzoukaites, fierce mountain tribes under Trebizond's rule, and Melik was captured.