William, known as William the Courteous, a member of the House of Habsburg and Wilhelm, was Duke of Austria from 1386. As head of the Leopoldian line, he ruled over the Inner Austrian duchies of Carin
Historic portrait by Anton Boys (about 1580)
Seal of William of Austria
Dymitr of Goraj by Jan Matejko depicts Jadwiga trying to break the castle gate to join William