Battle of Sluis
1603 CE.
Shown on the map at 51.333°, 3.383°.
The Battle of Sluis was a naval battle during the Eighty Years' War in which a Spanish squadron commanded by the Italian captain Federico Spinola tried to break through a blockade of Sluis by Dutch ships under the command of Joos de Moor. After about two hours of fighting the heavily damaged Spanish ships returned to Sluis. Federico Spinola was killed during the action.
Text from the Wikipedia article Battle of Sluis (1603), licensed CC BY-SA 4.0.