Battle of St. Quentin
1557 CE.
Shown on the map at 49.850°, 3.290°.
The Battle of Saint-Quentin of 1557 was a decisive engagement of the Italian War of 1551–1559 between the Kingdom of France and the Spanish Empire, at Saint-Quentin in Picardy. A Habsburg Spanish force under Duke Emmanuel Philibert of Savoy defeated a French army under the command of Louis de Gonzague, and Anne de Montmorency, Duke of Montmorency.
Text from the Wikipedia article Battle of St. Quentin (1557), licensed CC BY-SA 4.0.