William, Duke of Saxe-Weimar (German: Wilhelm von Sachsen-Weimar; 11 April 1598 – 17 May 1662) was a duke of Saxe-Weimar. He was the fifth child, but the third surviving son of Johann II, Duke of Saxe-Weimar, and Dorothea Maria of Anhalt. He was the brother of Bernard of Saxe-Weimar, a prominent Protestant military leader during the Thirty...
