Battle of Le Quesnoy
1568 CE.
Shown on the map at 50.250°, 3.500°.
The Battle of Le Quesnoy (Le Quesnoy, Hainault, 12 November 1568) was fought between a mostly German army supporting the Dutch rebels and the Spanish Habsburg army.
Text from the Wikipedia article Battle of Le Quesnoy (1568), licensed CC BY-SA 4.0.