EUSTACE IV  . (d . 1153) became the

heir-apparent to his father's possessions by the death of an elder brother before 1135 . In 1137 he did homage for Normandy to Louis VII. of France, whose sister, Constance, he subsequently married . Eustace was knighted in 1147, at which date he was probably from sixteen to eighteen years of age; and in 1151 he joined Louis in an abortive raid upon Normandy, which had accepted the title of the empress Matilda, and was now defended by her husband, Geoffrey of Anjou . At a council held in London on the 6th of April 1152 Stephen induced a small number of barons to do homage to Eustace as their future king; but the primate, Theobald, and the other bishops declined to perform the coronation ceremony on the ground that the Roman curia had declared against the claim of Eustace . The death of Eustace, which occurred during the next year, was hailed with general satisfaction as opening the possibility of a peaceful settlement between Stephen and his rival, the young Henry of Anjou . The Peterborough Chronicle, not content with voicing this sentiment, gives Eustace a bad s ecial discussions of Eusebius' separate works, particularly of his Church History, and of his character as an historian, cannot be referred to here . Elaborate bibliographies will be found in McGiffert's translation, and in Preuschen's article in Herzog-Hauck . (A.C .