Battle of Helsingborg
1362 CE.
Shown on the map at 56.040°, 12.660°.
The Battle of Helsingborg was fought on 8 July 1362 between the Danish and Hanseatic fleets during the Danish-Hanseatic War (1361–1370).
Text from the Wikipedia article Battle of Helsingborg (1362), licensed CC BY-SA 4.0.