Philippe Auguste brought young Arthur to this betrothal, and caused him to swear fealty to his uncle for Brittany as a fief of Normandy. Arthur was now thirteen, and had newly received the order of knighthood, adopting as his device the lion, unicorn, and griffin, which tradition declared to have been borne by his namesake, and this homage must have been sorely against his will. He was betrothed to Marie, one of the French King’s daughters, and continued to reside at his court, never venturing into the power of his uncle. His mother, Constance, had taken advantage of this tranquillity to obtain a divorce from the hated Earl of Chester, and to give her hand to the Vicomte Guy de Thouars; but the Bretons appear to have disapproved of the step, as they never allowed him to bear the title of Duke. She survived her marriage little more than two years, in the course of which she gave birth to three daughters, Alix, Catherine, and Marguerite, and died in the end of 1201. Arthur set off to take possession of his dukedom, and was soon delighted to hear of a fresh disturbance between his uncle and the King of France, hoping that he might thus come to his rights. John had long ago fallen in love with Avice, granddaughter of Earl Robert of Gloucester, and had been espoused to her at his brother’s coronation; but the Church had interposed, and refused to permit their union, as they were second cousins. He was now in the south of France, where he beheld the beautiful Isabelle, daughter of the Count of Angoulême, only waiting till her age was sufficient for her to fulfill the engagement made in her infancy, and become the wife of Hugh de Lusignan, called _le brun_, Count de la Marche, namely, the borders of English and French Poitou. Regardless of their former ties, John at once obtained the damsel from her faithless parents, and made her his queen; while her lover, who was ardently attached to her, called upon the King of France, as suzerain, to do him justice. Philippe was glad to establish the supremacy of his court, and summoned John to appear. John promised compensation, and offered as a pledge two of his castles; then broke his word, and refused; whereupon Philippe took up arms, besieged the castles, and had just destroyed them both, when Arthur arrived, with all the Breton knights he could collect, and burning with the eagerness of his sixteen years.