in 1204, the Duchy was taken over by the French king Philip Augustus. The English kings continued to claim the title until the Treaty of Paris of 1259, when they gave up their claims to it, although the English kings continued to rule the Channel Islands, once a part of the Duchy. On several occasions, the Duchy was given out as an apanage for a member of the French royal family, most notably by Philip VI for his eldest son, the future King John II; by John II for his son, the future Charles V, who was, however, usually known as the Dauphin; and by Louis XI for his brother Charles, usually known by his other title of Duc de Berri. The future Louis XVII was also known as Duke of Normandy before his elder brother's death in 1789.