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 Brunswick the accession of Ernest Augustus, Duke of Brunswick, the son of the Crown Prince of Hanover, in 1913. William died unmarried, but had a number of illegitimate children. William, Duke of Brunswick William, Duke of Brunswick (; 25 April 1806 – 18 October 1884), was ruling duke of the Duchy of Brunswick from 1830 until his death. William was the second son of Frederick William, Duke of Brunswick-Lüneburg, and after the death of his father in 1815, was under the guardianship of King George IV of the United Kingdom. He became a Prussian major in 1823. When his brother, Charles,