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Battle of Achelous (1359)

Battle of Achelous
Date late spring of 1359
Location near Achelous river, Aetolia, modern Greece
Result victory of Peter Losha and John Spata
Territorial
changes
Despotate of Arta and Despotate of Angelokastron and Lepanto established from regions of the Despotate of Epirus
Belligerents
Albanian tribes under Peter Losha and John Spata Despotate of Epirus
Commanders and leaders
Peter Losha
John Spata
Nikephoros II Orsini  
Strength
Unknown Unknown
Casualties and losses
Unknown Unknown

The Battle of Achelous (Albanian: Beteja e Akelout) took place in 1359 near the river Achelous, in Aetolia, modern Greece fought between Albanian troops, under Peter Losha and John Spata, and forces of the Despotate of Epirus, under Nikephoros II Orsini. The Albanians defeated Orsini's army, which suffered massive casualties during the battle. The battle established two despotates from regions previously part of the Despotate of Epirus: the Despotate of Arta and the Despotate of Angelokastron and Lepanto.

Since the early 14th century the power of the Despotate of Epirus had been decreasing while the Albanian tribesmen had been increasing their control over many areas of the despotate.Nikephoros II Orsini, Despot of Epirus decided to establish closer relations to the Serbian Empire by dropping his previous wife Maria Cantacuzena and marrying the sister of Stefan Uroš IV Dušan's widow. The Albanians of the Despotate threatened revolt if Orsini married Helena of Bulgaria's sister and didn't recall Maria, who was part of the Cantacuzene family allied with them. Orsini was forced to recall Maria but decided to wage war against the Albanians to stop their increasing power in the despotate.

Nikephoros II Orsini gathered his forces and marched against the Albanians in the regions they had settled in Aetolia, modern western Greece. The Albanians gathered their forces and under the leadership of Peter Losha fought against Orsini in the late spring of 1359 near the Achelous river. The Albanians won the battle. Orsini was killed and his whole army was destroyed.


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