Battle of Brüx
1421 CE.
Shown on the map at 50.521°, 13.637°.
The Battle of Brüx was fought on 5 August 1421 in North Bohemia during the Hussite Wars. The Hussite troops, led by Jan Želivský, were defeated by the Catholic Imperial forces of Frederick I of Saxony.
Text from the Wikipedia article Battle of Brüx, licensed CC BY-SA 4.0.