William the Conqueror France, Henry I, enabling him to succeed to his father's duchy. The support given to the exiled English princes in their attempt to return to England in 1036 shows that the new duke's guardians were attempting to continue his father's policies, but Archbishop Robert's death in March 1037 removed one of William's main supporters, and conditions in Normandy quickly descended into chaos. The anarchy in the duchy lasted until 1047, and control of the young duke was one of the priorities of those contending for power. At first, Alan of Brittany had custody of the duke, but when Alan died
William, Duke of Opava of Opava after Bolko's death from the latter's brother Nicholas I and in 1464, he purchased the other 2/3 in Opole in 1464 from John II, thereby considerable increasing his political and economic influence in Silesia. William of Troppau died in 1452. He was buried in the Holy Spirit Church in Opava. William was married with Salome, a daughter of the East Bohemian nobleman Půta III of Častolovice and his wife, Anna, the daughter of Albert of Koldice. They had the following children: William, Duke of Opava Duke William of Opava (; – 15 August 1452) was a member of