Louis having laid a scheme for surprising the town of Noyon, Henry marched to the relief of the place, and encountered a portion of the French army at Brenneville (1119). On the side of the French were four hundred knights, while King Henry was attended by somewhat more than that number. William of Normandy, at the head of a body of the French, made a gallant charge upon his opponents, and penetrated through their ranks to the place where Henry was standing. The English king was struck on the head by Crispin, a Norman soldier, who had followed the fortunes of William. Henry, however, was rather excited than injured by the blow, and he struck his adversary to the ground, following up his advantage with other feats of gallantry. By this means he encouraged his troops, and after an obstinate conflict, the French were beaten off, with the loss of their standard and one hundred and forty knights, who were taken prisoners. The number of dead in this engagement amounted only to two, or, as some say, to three knights. At this period the cavalry were encased in heavy armour, which almost secured the wearers from blows of sword or lance, while, according to the usages of chivalry, all knights, on whichever side they fought, were regarded as one brotherhood, and the object aimed at in battle was not to despatch an adversary, but to take him prisoner. These circumstances account for the number of dead being unusually small as compared with the number engaged; though in the battle of Brenneville the proportion of the former seems to be less than in any other engagement on record. The battle of Brenneville was followed by a treaty of peace, which was arranged by the intervention of the Pope Calixtus, between Louis and Henry. By this treaty, the interests of William Fitz-Robert were entirely set aside, and the whole of the duchy of Normandy was to remain in the hands of Henry, whose son William was to render homage to Louis for the possession of the duchy. By this means the King of England evaded the declaring of himself a vassal of the King of France--an act which, as Duke of Normandy, he was called upon to perform. Henry carried his son William into Normandy, where he received his first arms, and was acknowledged as King Henry's successor by the barons. He also obtained the hand of the daughter of Fulk of Anjou. The bride was a child of twelve years old, and the prince had but just passed his eighteenth year. These various matters being accomplished, and peace established on a tolerably secure footing, King Henry prepared to return to England (1120).