Bertrand du Guesclin
Henry's troops marched alongside those of Bertrand du Guesclin, French knight and leader of the free companies ("Compañías Blancas") which arrived from France. The besieged King Henry tried to negotiate his escape with Bertrand du Guesclin, and escorted by two of his men, went to the tent of the Frenchman, where Henry happened to be. It is not certain whether it was Bertrand himself who called Henry, or it was another knight that learned Henry was trying to flee the scene of the siege. Whatever the reason for Henry's presence in Bertrand's tent, Henry and Peter engaged in hand to hand combat. Some authors say one of the knights present helped Henry by restraining Peter, but it seems unlikely that Bertrand du Guesclin was involved in this murder beyond the fact that it happened in his tent, as his reputation for bravery and honour had been proven in the past and assisting in Peter's death would be inconsistent with this.