John Hanus Duke of Opava-Ratibor Duke of Ratibor, Opava, Krnov and Bruntál (1332–1381) Parents Anna of Racibórz Nicholas II, Duke of Opava Children Nicholas IV, Duke of Ratibor-Bruntál Margareta von Troppau-Ratibor John II, Duke of Opava-Ratibor Siblings Margaret of Opava Nicholas III, Duke of Opava Přemek I, Duke of Opava Wenceslaus I of Opava Euphemia of Opava Partners Anna of Sagan