Siege of Mons
1746 CE.
Shown on the map at 50.455°, 3.952°.
The siege of Mons took place from 7 June to 23 July 1746 during the War of the Austrian Succession. The town of Mons, then part of the Austrian Netherlands, was besieged by a French army corps commanded by Louis François, Prince of Conti. The Austrian and Dutch defenders surrendered the town of Mons on 10 July, while the citadel fell to the French on 23 July.
Text from the Wikipedia article Siege of Mons (1746), licensed CC BY-SA 4.0.