Edward the Black Prince the party of Montfort, and Chandos won the Battle of Auray (29 September 1364) against the French. As the leaders of the free companies which desolated France were for the most part Englishmen or Gascons, they did not ravage Aquitaine, and the prince was suspected, probably not without cause, of encouraging, or at least of taking no pains to discourage, their proceedings. Accordingly on 14 November 1364 Edward III called upon him to restrain their ravages. In 1365 the free companies, under Sir Hugh Calveley and other leaders, took service with Bertrand du Guesclin, who employed them in 1366 in
Edward the Black Prince handed over to him. In order to get rid of his creditor Peter told him that he could not get money at Burgos, and persuaded the prince to take up his quarters at Valladolid while he went to Seville, whence he declared he would send the money he owed. The Black Prince remained at Valladolid during some very hot weather, waiting in vain for his money. His army suffered so terribly from dysentery and other diseases that it is said that scarcely one Englishman out of five ever saw England again. He was himself seized with a sickness from which