Battle of Lihula
1220 CE.
Shown on the map at 58.694°, 23.839°.
The Battle of Lihula or Battle of Leal was fought between invading Swedes and Estonians for the control of a castle in Lihula, Estonia in 1220. The exact date remains uncertain, though some historians suggest that the battle took place on August 8. The event is described in the Chronicle of Henry of Livonia and the Livonian Rhymed Chronicle.
Text from the Wikipedia article Battle of Lihula, licensed CC BY-SA 4.0.