Edward offered him freedom on condition of his swearing not to war in favour of France or of Henry of Trastamarra, the candidate for the Spanish throne. Du Guesclin could not consistently with honour comply with these conditions; and Edward, stung by the recollection that the world had impeached his bravery and generousness, declared that, to show he dreaded no man, Du Guesclin should be restored to his liberty on paying a proper ransom. The noble Breton then required to be released on his parole, in order that he might fetch the necessary sum. Edward, touched by his spirited demeanour, resumed all his generous and chivalric feelings, and declared that Du Guesclin should name his own ransom; and instead of fixing it at ten thousand or twenty thousand livres, the captive hero proudly mentioned sixty thousand florins. The Prince was astonished at his apparent presumption, and asked him by what means he could pay so large a sum. "The Kings of France and Castile," he replied, "are my friends, and will never fail me in a case of necessity. I know a hundred knights of Brittany who would sell their possessions for my liberation; and there is not a woman sitting at her distaff in France who would not labour with her own hands to redeem me from yours." Du Guesclin was then liberated on his parole of honour, and people gazed with curiosity and respect upon a man who had so noble a sense of his own dignity.[151] [Sidenote: Is made constable of France.] This liberation took place in the year 1368, and the Breton immediately entered into the service of Henry of Trastamarra. Peter had renewed his cruelties when the Black Prince seated him on the throne, and his tyranny again provoked the Castilians to rebellion. The power of Henry slowly rose, and as soon as Du Guesclin and his Gascons took the field, he once more became king. Soon afterwards our knight was recalled by Charles V. to France, and placed at the head of his chivalry by the title of Constable. He entered Paris amidst general acclamations, the people saluting him with cries which hitherto had been appropriated to kings. He went to court, where the King, in the presence of his nobles, declared, that he chose him to command his armies, and therefore gave him the sword of Constable. Du Guesclin then, with the modesty of a true knight, implored his sovereign to honour with this dignity some one who was more worthy of it than himself. But Charles declared that there was not a knight in France who did not acknowledge the superior worship of Du Guesclin, and therefore he commanded him to accept the office. Du Guesclin yielded; but fearing the courtiers of Paris more than his country's enemies, he entreated the King not to credit any tales which might be circulated to his prejudice, without first hearing his defence.[152] [Sidenote: Recovers the power of the French monarchy.] [Sidenote: Companionship in arms between Du Guesclin and Olivier de Clisson.]