Mongol invasion of Byzantine Thrace
| Mongol invasion of Byzantine Thrace | |||||||
|---|---|---|---|---|---|---|---|
| Part of the Mongol invasion of Europe | |||||||
| 
 | |||||||
| Belligerents | |||||||
| Golden Horde | Byzantine Empire | ||||||
| Commanders and leaders | |||||||
| Berke | Michael VIII Palaiologos | ||||||
| Strength | |||||||
| Unknown | Unknown | ||||||
The Mongol invasion of Byzantine Thrace took place in the winter of AD 1263/1264. The Seljuk Sultan of Rûm Kayqubad II appealed to Berke, Khan of the Golden Horde, to attack the Byzantine Empire in order to free his brother Kaykaus II.