Battle of Neopatras

Battle of Neopatras
Part of the Byzantine-Latin Wars

Map of the Byzantine Empire and the Latin states in southern Greece c. 1278
Date1274/75 (or 1272/73)
Location
Neopatras (modern Ypati in Phthiotis, Greece)
Result Byzantine defeat
Belligerents
Byzantine Empire Principality of Thessaly
Duchy of Athens
Commanders and leaders
John Palaiologos
Alexios Kaballarios 
John I Doukas
John I de la Roche
Strength
Reportedly ~30,000 300–500

The Battle of Neopatras was fought in the early 1270s between a Byzantine army besieging the city of Neopatras and the forces of John I Doukas, ruler of Thessaly. The battle was a rout for the Byzantine army, which was caught by surprise and defeated by a much smaller but more disciplined force.