Action of 7 July 1565
1565 CE.
Shown on the map at 55.293°, 14.649°.
This battle in the Northern Seven Years' War took place on 7 July 1565 and was a decisive victory for a Swedish fleet of 49 ships, under Klas Horn, over a combined Danish and Lübecker fleet of 36 ships, under Otte Rud.
Text from the Wikipedia article Action of 7 July 1565, licensed CC BY-SA 4.0.