Battle of Oldendorf
1633 CE.
Shown on the map at 52.167°, 9.250°.
The Battle of Oldendorf, took place on 8 July 1633 during the Thirty Years' War near Hessisch-Oldendorf in Lower Saxony. Troops besieging Hamelin led by the Duke of Brunswick combined with their Swedish allies to defeat an Imperial army sent to relieve the town.
Text from the Wikipedia article Battle of Oldendorf, licensed CC BY-SA 4.0.