Richard advanced through French territory by capturing several castles, most notably, the castle of Courcelles (of which the imposing unique oval donjon remains) and the stronghold at Burris. The French king tried to recapture Courcelles as he marched from Mante with 300 knights and a gathering of footsoldiers and citizens. The two forces met, after the Frankish army — which was superior in numbers — changed directions and advanced towards Gisors.