[Footnote 58: The next prince to hold the title was Charles, afterwards Charles I., who was created Duke of York on 6th Jan., 1605.] [Footnote 59: Afterwards Queen of Portugal and then of France. _L. and P._, _Henry VII._, i., 285, 425.] Immediately on receiving the news, and two days before they dated their letter of condolence to Henry VII., Ferdinand and Isabella commissioned the Duke of Estrada to negotiate a marriage between the widowed Catherine and her youthful brother-in-law.[60] No doubt was entertained but that the Pope would grant the necessary dispensation, for the spiritual head of Christendom was apt to look tenderly on the petitions of the powerful princes of this world. A more serious difficulty was the question of the widow's dower. Part only had been paid, and Ferdinand not merely refused to hand over the rest, but demanded the return of his previous instalments. Henry, on the other hand, considered himself entitled to the whole, refused to refund a penny, and gave a cold reception to the proposed marriage between Catherine and his sole surviving son. He was, however, by no means blind to the advantages of the Spanish matrimonial and political alliance, and still less to the attractions of Catherine's dower; (p. 027) he declined to send back the Princess, when Isabella, shocked at Henry VII.'s proposal to marry his daughter-in-law himself, demanded her return; and eventually, when Ferdinand reduced his terms, he suffered the marriage treaty to be signed. On 25th June, 1503, Prince Henry and Catherine were solemnly betrothed in the Bishop of Salisbury's house, in Fleet Street. [Footnote 60: _Sp. Cal._, i., 267.]