The Livonian War (1558–1583) concerned the control of Old Livonia (in the territory of present-day Estonia and Latvia). The Tsardom of Russia faced a varying coalition of the Dano-Norwegian Realm, the Kingdom of Sweden, and the Union (later Commonwealth) of the Grand Duchy of Lithuania and the Kingdom of Poland.
Text from Wikipedia, licensed under CC BY-SA 4.0
The 469th anniversary falls on January 17, 2027.