For some time there had been scandalous rumors at the court about the conduct of the three young princesses, and in the spring of 1314 the evil report received such confirmation that the old king, Philippe le Bel, gave the order to arrest them on charges of having been openly and scandalously unfaithful to their marriage vows with two young knights of their suite. Marguerite and Blanche were confined in rigid imprisonment at the famous Château Gaillard, built by Richard of the Lion Heart. They were stripped of all the glory of fine attire, and their heads were shaved. Meanwhile, their accomplices in adultery, Philippe and Gautier d'Aulnai, two Norman knights, were put to the torture, and confessed that during three years they had sinned many times with the princesses. The right of trial by battle, for which the knights first asked, had been sternly denied them; there was but the rack, and after that a shameful death for those who had dared to bring shame upon the royal family. With the ingenuity of the Middle Ages in devising exquisite torments, the two young men were publicly flayed alive, cruelly mutilated, and tortured as long as life could be kept in their miserable bodies. There were other accomplices in the disgrace of the princesses; these, too, when they were not of rank sufficiently high to protect them, were tortured, sewn up in sacks, and cast into the Seine. An unfortunate Dominican monk, accused of having debauched the princesses by compounding love philtres and otherwise exercising the black art, was delivered over into the hands of the Inquisition; he was never heard of afterward. The confessions of their lovers left no doubt as to the guilt of Blanche and Marguerite. The former, still but a girl, had been led into her evil ways by Marguerite, and pitifully owned her sin, pleading for forgiveness in accents of such sincere repentance that all who heard her were moved. But her husband was inexorable; and she remained in prison until 1322, when Charles, having become king, obtained a dissolution of the marriage on the ground that Mahaut had been his godmother and that this established a spiritual relationship for which he had forgotten to ask a dispensation when he married Blanche. Then Charles married Marie de Luxembourg, and his unhappy divorced wife was compelled to retire to a nunnery.