| Battle of Hyelion and Leimocheir | |||||||
|---|---|---|---|---|---|---|---|
| Part of the Byzantine–Seljuq wars | |||||||
| |||||||
| Belligerents | |||||||
| Byzantine Empire | Seljuk Sultanate of Rûm | ||||||
| Commanders and leaders | |||||||
| John Komnenos Vatatzes | Atapakos † | ||||||
| Strength | |||||||
| Unknown | 20,000–24,000[1][2] | ||||||
| Casualties and losses | |||||||
| Unknown | Unknown (heavy) | ||||||
The Battle of Hyelion and Leimocheir saw the almost complete destruction by the Byzantines of a large Seljuq Turk army. The Seljuq army had been raiding Byzantine territory in the Maeander Valley in Anatolia, and had sacked a number of cities. The Byzantine force ambushed the Turks at a river crossing.