Přemek I, Duke of Opava Duke of Troppau (1365–1433) Parents Juta of Niemodlin Nicholas II, Duke of Opava Children Wenceslaus II, Duke of Opava Ernest, Duke of Opava Przemko II, Duke of Opava William, Duke of Opava Nicholas IV, Duke of Opava Siblings John Hanus Duke of Opava-Ratibor Wenceslaus I of Opava Nicholas III, Duke of Opava Euphemia of Opava Margaret of Opava Partners Katharina von Münsterberg Anna von der Luczka Helen of Bosnia