Sibyl de Neufmarché he could rely to implement royal policy. Sibyl's father died sometime before 1128 (most probably in 1125), and Miles came into possession of her entire inheritance, which when merged with his own estates, formed one honour. Together Sibyl and Miles had eight children: After Henry I's death in 1135, the throne of England was seized by Stephen of Blois, a grandson of William I of England. Henry's daughter, Empress Matilda (Maud), also claimed the throne, and had the support of the Marcher Lords. On the death of her husband, the Holy Roman Emperor, Henry V, in 1125, Matilda had returned
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