At this season, the bastard de la Hire was posted in the castle of Clermont in the Beauvoisis, with about sixty or four score combatants, with whom he sorely harrassed the adjoining countries, more particularly the castlewicks of Peronne, Roye, and Mondidier, belonging to the duke of Burgundy. Thither they made frequent excursions, carrying away each time to their garrison great plunder in cattle and other effects, notwithstanding the peace concluded at Arras between the king of France and the duke.

One day, they came before the town of Roye, and drove off cattle, and whatever else they could lay hands on, to the castle of Clermont. They were usually accompanied by several garrisons as well from Mortemer[6], belonging to William de Flavy, as from others. The governor of Roye for the duke of Burgundy, was a valiant noble man, called Aubert de Folleville, who, hearing of their enterprise assembled with all speed as many men at arms as he could collect, and instantly pursued them, in the hope of recovering the plunder they were carrying away. He overtook them at a village called Boulogne, and immediately charged them; but they had seen him coming, and had placed an ambuscade, who sallied out against sir Aubert, and, from their superior numbers, defeated him and put him to death. Many gentlemen were likewise killed, such as the souldan de la Bretonnerie, his nephew Hugh de Bazincourt, the bastard d'Esne, Colart de Picellen, Jacques de Bruyiere, Jean Basin, Simon le Maire, and several more: the rest saved themselves by the fleetness of their horses.

The duke of Burgundy was greatly vexed at this defeat, and at similar inroads being made on his territories,—and to oppose these pillagers, the count d'Estampes reinforced the garrisons of Peronne, Roye, and Mondidier with men at arms.