Claim: Livonian campaign of Stephen Báthory, held from 1577 to 1582 in Duchy of Livonia, Polish-Russian borderlands resulted to the Polish-Lithuanian victory and truce of Jam Zapolski.
Evidence: The Livonian campaign of Stephen Báthory (referred to as the Russo-Polish War among Polish historians) took place in the final stage of the Livonian War, between 1577 and 1582. Duchy of Livonia, Polish-Russian borderlands Polish-Lithuanian victory, Truce of Jam Zapolski