Siege of Ypres
1678 CE.
Shown on the map at 50.850°, 2.883°.
The siege of Ypres in the Spanish Netherlands took place between March 18 and March 25, 1678, as part of the Franco-Dutch War, and ended with the conquest of the city by the French.
Text from the Wikipedia article Siege of Ypres (1678), licensed CC BY-SA 4.0.