With sir John de Luxembourg and the lord de Fosseux were le veau de Bar bailiff of Auxois, the lord de l'Isle-Adam, sir Emond de Bonberch, the lord d'Auxois, Hector and Philip de Saveuses, Ferry de Mailly, Louis de Varigines, sir Philip de Fosseux, James and John de Fosseux, the lord de Cohen, sir Janet de Poix, the lord de Longueval, the lord de Miraumont, and in general all the nobles and gentlemen of Picardy, who made a handsome appearance with vanguard, rearguard and main battalion, and thus marched to within a league of Senlis. The lord d'Armagnac, constable of France, was closely besieging the town of Senlis, when he received intelligence from his scouts that the nobles of Picardy were approaching with a large army to to offer him battle: in consequence he commanded his men to arm without delay, and advance in battle-array to the plain, that he might avoid being attacked in his camp. The besieged, observing about day-break great bustle and confusion in the enemy's camp, with good order and courage made a sally from the town, set fire to the tents and quarters of the constable, killed numbers of the sick, and others, whom they found in the camp, and returned to the town with a large booty in sight of their enemies. The constable, vexed at this, sent them a summons to surrender the town according to their promise, but on their answering that the time was not yet expired, he caused the heads of four of the hostages to be cut off, their bodies to be quartered, and hung on a gibbet. Of these four, two were gentlemen, namely Guillaume Mauchelier and Boudart de Vingles: the two others were citizens, named Guillaume Escallot and master John Beaufort, king's advocate in the town. The remaining two (for there were six in all), sir John Durant priest and a monk of St Vincent, were carried prisoners to Paris. In revenge, the besieged beheaded sixteen of the constable's men: two were hanged and two women were drowned. The count d'Armagnac then marched his army in battle-array to the Pas-de-Larron between Criel and Gouvieux, to wait for the enemy; and dispatched some of his captains to seek the king at Criel and make him take the road toward Paris. Sir John de Luxembourg and the lord de Fosseux had advanced so rapidly with their army that they were rather before hand with the king, and halted at a place called l'Estoing, where the king and his army must pass. Soon after, the van of the constable made its appearance, and the light troops of both sides began a sharp skirmish, when many lances were broken, and men at arms unhorsed, slain or terribly wounded.