Battle of Daugavgriva
1609 CE.
Shown on the map at 57.055°, 24.093°.
The Battle of Daugavgrīva took place on October 6, 1609, during the Polish–Swedish War (1600–1611). The Poles and Lithuanians under Jan Karol Chodkiewicz's command stood victorious.
Text from the Wikipedia article Battle of Daugavgrīva (1609), licensed CC BY-SA 4.0.