Adela of Normandy herself to not only her late husband but her sons. Adela quarrelled with her eldest son William and despite his previously being named heir-designate, she appointed his younger brother Theobald to replace him as heir in 1107. Her son Stephen moved to London in 1111 to join his uncle's court and became the favorite of his uncle King Henry I (Beauclerc). Upon Beauclerc's death in Normandy (1135), Stephen of Blois seized the English throne. He seized the English crown from the Empress Matilda, King Henry I's daughter whom the monarch had named as his successor. This started a protracted civil
Henry I of France William until the former's death in 1060. In 1051, William married Matilda, the daughter of the count of Flanders, which Henry saw as a threat to his throne. In 1054, and again in 1057, Henry invaded Normandy, but on both occasions he was defeated. Henry had three meetings with Henry III, Holy Roman Emperor—all at Ivois. In early 1043, he met him to discuss the marriage of the emperor with Agnes of Poitou, the daughter of Henry's vassal. In October 1048, the two Henries met again and signed a treaty of friendship. The final meeting took place in May 1056