Battle of Sluis (1603)

51°20′N 3°23′E / 51.333°N 3.383°E / 51.333; 3.383

Battle of Sluis (1603)
Part of the Eighty Years' War
Battle of Sluis, by Hendrick Cornelisz Vroom
Date 26 May 1603 Location Sluis (present-day Netherlands) Result Dutch victory
Belligerents
United Provinces	Spain
Commanders and leaders
Joos de Moor	Federico Spinola †
Strength
3 men-of-war, 2 galleys, several minor vessels[1](Spanish source) 2 galleys, 2 smaller vessels.[2] Dutch source	8 galleys, 1,130 soldiers[1](Spanish source) 8 galleys, 4 smaller vessels[2](Dutch source)
Casualties and losses
50 dead or wounded no ships lost[2](Dutch source) 720 killed, 1 man-of-war sunk[3](Spanish source)	800 dead or wounded no ships lost[2](Dutch source) 414 killed[3](Spanish source)

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.