Battle of Bogucin
1273 CE.
Shown on the map at 50.311°, 19.577°.
The Battle of Bogucin took place on the 2nd of June 1273 near Bogucin, not far away from Olkusz. It was part of the Civil war in Poland (1273–1274), fought between the Kingdom of Poland led by Bolesław V the Chaste against the Lesser Poland rebels led by Vladislaus I of Opole. It resulted in a Bolesław–loyal victory.
Text from the Wikipedia article Battle of Bogucin, licensed CC BY-SA 4.0.