One first meets the Bastard of Wandomme in the army of Jean de Luxembourg, who laid siege to Beaumont-en-Argonne, on April 8, 1428. May 74, 1430, the day after capturing Jeanne, he received from the war treasurer of Burgundy the sum Of 277 livres for his reward. He is ranked as a squire, and had under him six men-at-arms and sixty-two yeomen.

Seven years before the capture of Jeanne, the Bastard of Wandomme distinguished himself in a tourney, fighting on foot, with a battle-axe, against a French knight; some time later in a real battle he was gravely wounded by the splintering of a lance and was left with a crippled arm.