Elizabeth of Austria, Polish noble (d. 1545)
Elizabeth of Austria (Polish: Elżbieta Habsburżanka; 9 July 1526 – 15 June 1545) was a Queen consort of Poland. She was the eldest of fifteen children of Ferdinand I, Holy Roman Emperor, and his wife Anne of Bohemia and Hungary. A member of the House of Habsburg, she was married to Sigismund II Augustus, who was already crowned as King of Poland and Grand Duke of Lithuania even though both of his parents were still alive and well. The marriage was short and unhappy. Elizabeth was of frail health, suffering from epileptic seizures, and died at age 18.