Henry II of England daughter of Henry I, King of England and Duke of Normandy. She was born into a powerful ruling class of Normans, who traditionally owned extensive estates in both England and Normandy, and her first husband had been the Holy Roman Emperor Henry V. After her father's death in 1135, Matilda hoped to claim the English throne, but instead her cousin Stephen of Blois was crowned king and recognised as the Duke of Normandy, resulting in civil war between their rival supporters. Geoffrey took advantage of the confusion to attack the Duchy of Normandy but played no direct role in the
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