Battle of Kolno
1794 CE.
Shown on the map at 53.411°, 21.934°.
The Battle of Kolno was fought on 10 July 1794 during the Kościuszko Uprising, between Polish–Lithuanian insurgents, led by Colonel Walenty Kwaśniewski, and Prussian Army led by General Heinrich Johann Günther. It took place in Kolno, in Polish–Lithuanian Commonwealth, now part of Poland, and ended without definitive victors, with both sides retreating.
Text from the Wikipedia article Battle of Kolno, licensed CC BY-SA 4.0.