Battle of Langensalza
1761 CE.
Shown on the map at 51.108°, 10.647°.
The Battle of Langensalza (10 February 1761) was an engagement between French forces and allied Prussian and Hanoverian forces during the Seven Years' War. It was fought near Langensalza in what is now eastern Germany.
Text from the Wikipedia article Battle of Langensalza (1761), licensed CC BY-SA 4.0.