Battle of Lena
1208 CE.
Shown on the map at 58.233°, 13.833°.
The Battle of Lena occurred on 31 January 1208 and probably took place near Kungslena, in the Tidaholm Municipality in Västergötland, Sweden. It was an important battle between the Danish-backed King Sverker II of Sweden and Prince Eric. Eric's forces won a crushing victory; however, in July 1210, Sverker returned with a second army and was killed in the Battle of Gestilren.
Text from the Wikipedia article Battle of Lena, licensed CC BY-SA 4.0.