John III Sobieski (Polish: Jan III Sobieski, Lithuanian: Jonas Sobieskis; 17 August 1629 17 June 1696), from 1674 until his death King of Poland and Grand Duke of Lithuania, was one of the most notable monarchs of the PolishLithuanian Commonwealth.Sobieski's military skill, demonstrated in wars against the Ottoman Empire, contributed to his prowess as King of Poland. Sobieski's 22-year reign marked a period of the Commonwealth's stabilization, much needed after the turmoil of the Deluge and the Khmelnytsky Uprising. Popular among his subjects, he was an able military commander, most famous for his victory over the Turks at the 1683 Battle of Vienna. After his victories over them, the Ottomans called him the Lion of Lechistan ; and the Pope called him the savior of Christendom. Show less «