Battle of Cape Machichaco
1937 CE.
Shown on the map at 43.874°, -2.738°.
The battle of Cape Machichaco was a naval battle which took place on 5 March 1937 off Bermeo, during the Spanish Civil War, between the Spanish Nationalist heavy cruiser Canarias and four Basque Navy trawlers escorting a Republican convoy. The trawlers were protecting the transport ship Galdames, which was sailing to Bilbao with 173 passengers.
Text from the Wikipedia article Battle of Cape Machichaco, licensed CC BY-SA 4.0.