Edward the Black Prince compelling Peter of Castile to flee from his kingdom, and in setting up his bastard brother, Henry of Trastámara, as king in his stead. Peter, who was in alliance with Edward III, sent messengers to the Black Prince asking his help, and on receiving a gracious answer at Corunna, set out at once, and arrived at Bayonne with his son and his three daughters. The prince met him at Capbreton, and rode with him to Bordeaux. Many of the prince's lords, both English and Gascon, were unwilling that he should espouse Peter's cause, but he declared that it was not
Edward the Black Prince him sent a messenger to tell his father that he was in great straits and to beg for assistance. When Edward learned that his son was unwounded, he responded that he would send no help, for he wished to give the prince the opportunity to "win his spurs" (he was in fact already a knight), and to allow him and those who had charge of him the honour of the victory. The prince was thrown to the ground and was rescued by Sir Richard FitzSimon, his standard bearer, who threw down the banner, stood over his body, and beat back