Battle of Serres
Part of Bulgarian-Latin Wars
Date June, 1205
Location Serres
Result Bulgarian victory
Coat of Arms of the Bulgarian Empire.png Bulgarian Empire Blason Empire Latin de Constantinople.svg Latin Empire
Commanders and leaders
Kaloyan Unknown
Unknown Unknown
Casualties and losses
Light Heavy

The battle of Serres (Bulgarian: Битка при Сяр) took place in June 1205 in the town of Serres (Syar) in contemporary Greece between the Bulgarians and the Latin Empire. It resulted in a Bulgarian victory.

Origins of the conflict

After the stunning victory in the battle of Adrianople (1205) the Bulgarians gained control of most of Thrace with the exception of several larger cities which Emperor Kaloyan wanted to capture. In June 1205 he moved the theatre of the military actions to the south-west towards the domains of Boniface Montferrat, the King of Solun and vassal of the Latin Empire.

The battle

The first town on the way of the Bulgarian army was Serres. The Crusaders tried to fight back in the vicinity of the town but were defeated and had to pull back to the town but during their retreat the Bulgarian troops also entered Serres. The remaining Latins were besieged in the citadel. In the negotiations which followed Kaloyan agreed to give them save conduct to the Bulgarian-Hungarian border. However, when the garrison surrendered, the knights were killed while the ordinary people were spared.


The successful campaign in 1205 ended with the capture of Plovdiv - its citizens desired to join Bulgaria but the Byzantine nobility led by Alexius Aspietos resisted. After Kaloyan seized the city its ramparts were destroyed and Aspietos was hanged. In the following year the war against the Latin empire and the local Byzantine nobility continued and the Crusader army was defeated once again in the battle of Rusion.


  • Йордан Андреев, Милчо Лалков, Българските ханове и царе, Велико Търново, 1996.

41°5′0″N 23°33′0″E / 41.083333, 23.55


 FatherMotherDeath dateAge at death
Hugues de Coligny (c1163-1205)Humbert II de Coligny (c1143-1190)Ide de Vienne (1162-1224)2 September 1205 JL
Battle of Serres (1205) military event 1
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