Gilbert Foliot II. It opened on 4 April 1139, and among other matters heard an appeal from the Empress Matilda concerning her claim to the throne of England. Matilda was the daughter and only surviving legitimate child of King Henry I, but following her father's death in late 1135 her cousin Stephen, the son of Henry's sister, had seized the crown. By 1139 Matilda had gathered supporters and was contesting Stephen's right to the throne. In about 1143 Foliot wrote an account of the proceedings of the council in a letter to one of Matilda's supporters. No action was taken on her
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