He first detached sir Simon de Lalain into Luxembourg, with three or four hundred combatants, who formed a junction with the count de Vernembourg, and the other nobles allied to the duke of Burgundy. They quartered themselves in Arlon, and other towns attached to the duchess, and thought to have gained Thionville by an understanding with the inhabitants, but failed, from the count de Clicque and his party having the ascendency, together with a considerable garrison to enforce obedience. Shortly after, the count de Clicque, with a large army and train of artillery, advanced near to Arlon, with the intent to besiege it, and several skirmishes took place, when many were killed and wounded on both sides,--but fearing the superior force of the duke of Burgundy, he retreated into Luxembourg. The Picards made several excursions, and at times advanced even to the gates of Luxembourg. The duke of Burgundy now left Dijon in handsome array, and grandly attended with knights and esquires. He fixed his quarters at Yvoy, in the duchy of Luxembourg, where he was joyfully received by the inhabitants. While at Yvoy, he ordered the castle of Villy to be besieged, as it contained a party of marauders, who had done great mischief to the poor farmers, under the command of one called Jacquemin de Beaumont. The command of this expedition was given to Guy de Roye, the lord de Saveuses, Hugh de Hasines, and others, having with them six hundred combatants. They pointed many engines against this castle, which damaged it much; but those within declared, that they belonged to the young lord de Commercy, who had been with the dauphin to the relief of Dieppe. They also sent to inform him of what was passing, when he assembled about a thousand combatants,--among whom was Pierre Robert, le Roucin, and many other veterans. They pushed forward by forced marches until they were near the castle, and then, at early morn, they surprised the burgundian camp, without meeting much resistance. Those, however, who had the command of the siege, hearing a noise, assembled their men in haste, and, in handsome array, attacked the enemy, drove him out of their camp into the plain, where a sharp engagement ensued, and where sir Gauvain Quieriet, sir Hugh de Longueval, and others of the chiefs displayed great courage. Sir Gauvain had joined them the day before, and had informed them of the march of the young lord of Commercy. This lord and his companions, finding that they would lose rather than gain by a longer stay, galloped off in haste, and returned to Commercy, leaving behind eight or ten dead and several wounded. On the part of the Burgundians, a gentleman, named Walter de Pavant, was slain, and a few with him. During the engagement, Jacquemin de Beaumont abandoned his men, and, issuing out at a postern of the castle, joined the young lord de Commercy, and returned with him. The garrison now surrendered on capitulation, that they should march away with arms and baggage.