Chandos then returned to De Montford, who had gallantly followed up the advantage gained by the confusion into which Charles' division had been thrown by the attack of Calverley. Charles was routed, he himself struck down and slain by an English soldier, and the division defeated with great slaughter. De Montford's whole force now gathered round Du Guesclin's division, which now alone remained, and after fighting gallantly until all hope was gone, the brave French knight and his companions yielded themselves as prisoners. The battle of Auray terminated the struggle between the houses of Blois and Montford. More than one thousand French men-at-arms died on the field of battle, among whom were many of the noblest in Brittany. Two counts, twenty-seven lords, and fifteen hundred men-at-arms were made prisoners. De Montford now took possession of the whole of Brittany, and at the suggestion of King Edward himself did homage to Charles V. for the duchy, which he afterward ruled with wisdom. CHAPTER XXII. VICTORY AND DEATH. While the Black Prince was with difficulty governing his province of Aquitaine, where the mutual jealousies of the English and native officers caused continual difficulties, King Edward turned all his attention to advancing the prosperity of England. He fostered trade, commerce, and learning, was a munificent patron of the two universities, and established such order and regularity in his kingdom that England was the admiration of all Europe. Far different was the state of France. The cessation of the wars with England and the subsequent disbandment of troops had thrown upon their own resources great numbers of men who had been so long engaged in fighting that they had no other trade to turn to. The conclusion of the struggle in Brittany after the battle of Auray and the death of Charles of Blois still further added to the number, and these men gathered in bands, some of which were headed by men of knightly rank, and scattered through France plundering the country and extracting heavy sums from the towns. These "great companies," as they were called, exceeded fifty thousand men in number, and as almost all were trained soldiers they set the king and his nobles at defiance, and were virtually masters of France. The most tempting offers were made to them to lay down their arms, and the pope sent legates threatening excommunication, but the great companies laughed alike at promises and threats. At last a way of deliverance opened to France. Pedro, named the Cruel, of Castile, had alienated his people by his cruelty, and had defeated and driven into exile his half-brother, Henry of Transtamare, who headed an insurrection against him. Pedro put to death numbers of the nobles of Castile, despoiled the King of Arragon, who had given aid to his brother, plundered and insulted the clergy, and allied himself with the Moors.