Battle of Serres
1196 CE.
Shown on the map at 41.083°, 23.550°.
The Battle of Serres (Bulgarian: Битка при Сяр, Greek: Μάχη των Σερρών) took place in 1196 near the town of Serres in contemporary Greece between the armies of the Bulgarian and Byzantine empires. The result of the battle was Bulgarian victory.
Text from the Wikipedia article Battle of Serres (1196), licensed CC BY-SA 4.0.