Stephen, Duke of Slavonia Duke of Slavonia, Prince and Regent of Hungary (1332-1354) (1332–1354) Parents Elizabeth of Poland, Queen of Hungary Charles I of Hungary Children Elizabeth of Slavonia John, Duke of Slavonia Siblings Andrew, Duke of Calabria Catherine of Hungary, Duchess of Świdnica Louis I of Hungary Coloman of Hungary Lasislaus of Hungary Charles of Hungary Partners Margaret of Bavaria, Duchess of Slavonia