Battle of Wallhof
1626 CE.
Shown on the map at 56.517°, 24.733°.
Battle of Wallhof (Latvian: Valles kauja, also known as Battle of Walmojza) was fought between Sweden and the Polish-Lithuanian Commonwealth on 17 January 1626.
Text from the Wikipedia article Battle of Wallhof, licensed CC BY-SA 4.0.