Duchy of Nysa
Henry IV Probus, Duke of Wrocław and Kraków, died on 23 June 1290, probably poisoned. Because he died childless, in his will he bequeathed the Duchy of Wrocław to Henry III of Głogów, and Kraków – with the title of high duke and thus the overlordship over Poland – to Przemysł II. In addition, he returned Kłodzko to King Wenceslaus II of Bohemia and also gave the Duchy of Nysa–Otmuchów to the Bishopric of Wrocław as a perpetual fief with full sovereignty.