Battle of Cádiz
1656 CE.
Shown on the map at 36.533°, -6.283°.
The Battle of Cádiz was an operation in the Anglo–Spanish War (1654–1660) in which an English fleet destroyed or captured the ships of a Spanish treasure fleet off Cádiz.
Text from the Wikipedia article Battle of Cádiz (1656), licensed CC BY-SA 4.0.