The Battle of Sluis was a naval battle during the Eighty Years' War in which a Spanish squadron commanded by 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. His commander, the Italian captain Federico Spinola, was killed during the action.
Latitude: 51° 19' 60.00" N
Longitude: 3° 22' 59.99" E