Battle of Czarne
1627 CE.
Shown on the map at 53.684°, 16.940°.
The Battle of Czarne, 12 to 17 April 1627, took place during the Polish–Swedish War (1626–1629) around Czarne in Poland. A Polish–Lithuanian Commonwealth army under Stanisław Koniecpolski confronted a Swedish force led by von Lauenstein, Maximilian Teuffel, and von Kötteritz. Largely composed of unpaid German mercenaries, the Swedish troops mutinied and forced their leaders to surrender. Many subsequently switched sides.
Text from the Wikipedia article Battle of Czarne, licensed CC BY-SA 4.0.