When was the  sixteenth century King of Poland and Grand Duke of Lithuania died?
Sigismund II Augustus Sigismund II Augustus (Polish: "Zygmunt II August" , Ruthenian: "Żygimont II Awgust", Lithuanian: "Žygimantas II Augustas" , German: "Sigismund II. August" ) (1 August 1520 – 7 July 1572) was the King of Poland and Grand Duke of Lithuania, the only son of Sigismund I the Old, whom Sigismund II succeeded in 1548. Married three times, the last of the Jagiellons remained childless, and through the Union of Lublin introduced a free elective monarchy.
Stanisław Leszczyński Stanisław I Leszczyński (] ; also Anglicized and Latinized as Stanislaus I, Lithuanian: "Stanislovas Leščinskis" , French: "Stanislas Leszczynski" ; 20 October 1677 – 23 February 1766) was King of Poland, Grand Duke of Lithuania, Duke of Lorraine and a count of the Holy Roman Empire.