William the Conqueror King Henry in a campaign against him, the last known cooperation between the two. They succeeded in capturing an Angevin fortress, but accomplished little else. Geoffrey attempted to expand his authority into the county of Maine, especially after the death of Hugh IV of Maine in 1051. Central to the control of Maine were the holdings of the Bellême family, who held Bellême on the border of Maine and Normandy, as well as the fortresses at Alençon and Domfront. Bellême's overlord was the king of France, but Domfort was under the overlordship of Geoffrey Martel and Duke William was Alençon's
William II, Duke of Brunswick-Lüneburg William II, Duke of Brunswick-Lüneburg William II, Duke of Brunswick-Lüneburg (about 1300 – 1369) was the Prince of Lüneburg from 1330 to 1369. William was born around the year 1300 as the fourth child of Otto the Strict and his wife, Matilda of Bavaria.<br> On his father's death, William took over the reins of state jointly with his brother Otto III. This was against his father's will because Otto II had wanted the state to be divided after his death. The focus of the brothers' reign in the early years was the territorial consolidation of the principality. For example, they