162 father fuffered, he would do the like to fir Beau-mont de Laval, a great lord of Brittany, whom he kept as his prifoner. Upon this, the family of fir Beaumont interceded with the king, and exerted themfelves fo effe&ually that they obtained the exchange of fir Beaumont for fir William de Gra-ville *. Sir Bertrand du Guefclin, at this time, gained the caftle of Roulleboife, by prefenting the governor of it, fir Vautaire Auftard, with fix thoufand francs, who r^tred to Brabant, whence he had come. Many large companies of pillagers ftill kept pofleffion of different forts in the countries of Caux, Normandy, Beauce and Perche, whence they greatly harafled the kingdom of France : fome under pretence of ferving the king of Navarre ; others, for themfelves, robbed and deftroyed the country without any claims of right or of reafon. The king of France fent his brother, the duke of Burgundy,. againft thefe pillagers, who appointed his rendezvous in the city of Chartres. He then took the field, accompanied by fir Bertrand dn Guefclin, the lord de Boucicaut, the earl of Auxerre, the lord Louis de Châlons, the lord de Beaujeu, fir * In the Mémoires Hiftoriques, note 31. of Bertrand da Guefclin, it is faid, that fir William de Graville was ran-fomed from fir. Guy de Bayeux, who had taken him, for one thoufand florins, and that the king was fo much angered by it* againft Bayeux and his children, they were forced to leave the kingdom : the king afterwards pardoned them. In the continuation, however, of this note, it is related nearly the fame- as Froifiart tells it. * *: Aymon