When was the  sixteenth century King of Poland and Grand Duke of Lithuania died?
VI High School – King Sigismund Augustus VI High School – King Sigismund Augustus is a secondary school in the Bojary district of the city of Białystok in Poland. The school was founded in 1915 and its alumni include the inventor of Esperanto . The school is named after the sixteenth century King Sigismund II Augustus.
Władysław the White Władysław (Włodko) the White or Władysław of Gniewkowo (Polish: "Władysław (Włodko) Biały (Gniewkowski)" ; ca. 1327/1333 – 29 February 1388), was a Polish prince member of the House of Piast, Duke of Gniewkowo during 1347/1350–1363/1364 (his final and official resignation was in 1377) and last male representative of the Kujavian line.