Battle of Cape St. Vincent
1641 CE.
Shown on the map at 37.025°, -8.994°.
The Battle of Cape St Vincent of 1641 took place on 4 November 1641 when a Spanish fleet commanded by Don Juan Alonso de Idiáquez y Robles intercepted a Dutch fleet led by Artus Gijsels during the Eighty Years' War. After a fierce battle two Dutch ships were lost but the Dutch claimed only a hundred of their men were killed; the Spanish fleet also lost two ships but over a thousand dead. The damaged Dutch fleet was forced to abandon its planned attack on the Spanish treasure fleet.
Text from the Wikipedia article Battle of Cape St. Vincent (1641), licensed CC BY-SA 4.0.