Although the town of Chauny had been surrendered to the king in perpetuity, he restored it to the duke of Orleans, and, at the same time, granted him permission to raise from his vassals the sum of sixty thousand florins of gold, by way of tax, for his own private use. But he could never succeed in the attempts which he made to regain his two castles of Coucy and Pierrefons. When he had been at Beaumont a few days, he departed, and went to meet the English under the command of the duke of Clarence, who had landed, as has been said, at his request, and satisfied him fully, as to the pay of his men, so far as was in his power; but as he could not then advance the whole that was due for their pay, the duke of Orleans gave, as a pledge for the due fulfilment of his engagement, his youngest brother, the count of Angoulême, with many other gentlemen, namely, sir Marcel le Borgne, Jean de Saveuses, Archambault de Villiers, Guillaume le Boutillier, Jean David, and others of his dependants. They were all carried away by the duke of Clarence, who retired with his English to Guienne. The count of Angoulême was pledged for the sum of two hundred and nine thousand francs french money. When the duke of Orleans had concluded this, he returned to Blois; but these bondsmen remained in England a long time, as shall be told hereafter. The duke of Orleans sent some of his most able knights to prevail on the king to restore to him his castles of Coucy and Pierrefons, which were held by the constable; but although the king granted his letters for the surrender of them, the constable refused to obey, giving for answer, that until he should be repaid the money he had advanced to his men at arms for the conquest of them, he would retain them,--adding, that the king had made him a promise of them, and had nominated sir Gerard de Herbannes governor of Coucy, and of Pierrefons sir Collard de Fiennes. The castle of Pierrefons, which was a very strong and handsome edifice, was one night burnt to the ground, to the great displeasure of the duke,--but as he could not obtain any redress, he was forced to endure it. The duke of Burgundy, who resided at Paris, to be near the king, about this time caused sir Bourdin de Salligny to be arrested, and carried prisoner to Flanders, where he was confined some time, and then set at liberty. Sir Bourdin had been the particular and confidential friend of the duke; and it was reported, that he was inclined to change sides and turn to that of Orleans, and had even betrayed some of the duke's secrets.