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. William minted a silver groschen known as the Judenkopf Groschen. Its obverse portrait shows a man with a pointed beard wearing a Jewish hat, which the populace took as depicting a typical Jew.