William III, Landgrave of Thuringia

William III (30 April 1425 – 17 September 1482), called the Brave (in German "Wilhelm der Tapfere"), was landgrave of Thuringia (from 1445) and claimant duke of Luxemburg (from 1457). He is actually the second William to rule Thuringia, and in Luxembourg; he was the third Margrave of Meissen named William.