Siege of Riga
1709 CE.
Shown on the map at 56.947°, 24.107°.
The siege of Riga in 1709–1710 was a military operation of the army of the Tsardom of Russia during the Great Northern War against the forces of the Swedish Empire defending the fortress of Riga. As a result of the operation, Riga was taken by Russian troops.
Text from the Wikipedia article Siege of Riga (1709–1710), licensed CC BY-SA 4.0.