The Pope now excommunicated the Count, and King Charles VII vainly endeavoured to recall him to a better mind; but Armagnac resisted kind instances, and defied force. Soon after he associated himself with the insurrection of the Dauphin. The Duke of Clermont was sent against him. His guilty passion had enfeebled the mind of John, and in place of resisting the invasion, he abandoned his dominions, and fled with Isabella to the protection of his relative, the King of Aragon. He was summoned by the Parliament, and having been rash enough to appear, was arrested and imprisoned. Soon after he managed to escape. The sentence of perpetual banishment was passed upon him, and his dominions were forfeited. The Valley of Aure was, however, exempted so far that it was granted as a dowry to his sister. Then, as his last place of refuge, he retired to the Castle of Bordères, in the depths of the mountains. The once powerful and haughty Count of Armagnac was reduced to the deepest destitution, shunned by all, shrunk from even by his own subjects in the valley of the Neste, as though he were a leper or a Cagot. At last, impelled by his necessities rather than moved by remorse, he begged his way to Rome to obtain absolution for himself and for his sister. This was granted, but on hard conditions for himself, and that Isabella should retire into a convent at Barcelona. At this time Louis XI ascended the throne of France, and by him the Count of Armagnac was restored to his former rank and possessions. He now married Jeanne, daughter of the Count of Foix, and the past was forgotten, or at least forgiven. But this restless man, incapable of feeling gratitude for favours, allied himself with the enemies of the King, Charles the Bold, the Duke of Guyenne, and the King of England. Louis XI took occasion of the first moment of tranquillity allowed him by the ambitious projects of the Duke of Burgundy, to chastise John of Armagnac. In 1473 he confided the task to the Cardinal of Albi, who besieged him in Lectoure. The town, which was strongly fortified, defended itself bravely. Proposals of surrender were made to the Count, but whilst negotiations were in progress, one of the gates was forced, and John’s son, of the same name as his father, was killed fighting in the streets. John IV of Armagnac was stabbed in the presence of his wife, who was pregnant at the time. By order of Louis XI, who had no desire to see the line of Armagnac continued, she was thrown into prison and poisoned.