Battle of Ardres
1351 CE.
Shown on the map at 50.856°, 1.978°.
The battle of Ardres was a battle that took place on 8 June 1351 by forces from the Kingdom of France, led by Édouard I de Beaujeu, near the English-held town of Ardres, in a ditch in a river bend, as a part of the Hundred Years' War. In the battle Beajeau was killed and the English commander, John de Beauchamp was captured.
Text from the Wikipedia article Battle of Ardres, licensed CC BY-SA 4.0.