The sovereigns, highly dissatisfied with this response, ordered their subjects, ecclesiastical as well as lay, to quit the papal dominions; an injunction, which the former, fearful of the sequestration of their temporalities in Castile, obeyed with as much promptness as the latter. At the same time, Ferdinand and Isabella proclaimed their intention of inviting the princes of Christendom to unite with them in convoking a general council for the reformation of the manifold abuses, which dishonored the church. No sound could have grated more unpleasantly on the pontifical ear, than the menace of a general council, particularly at this period, when ecclesiastical corruptions had reached a height which could but ill endure its scrutiny. The pope became convinced that he had ventured too far, and that Henry the Fourth was no longer monarch of Castile. He accordingly despatched a legate to Spain, fully empowered to arrange the matter en an amicable basis.
The legate, who was a layman, by name Domingo Centurion, no sooner arrived in Castile, than he caused the sovereigns to be informed of his presence there, and the purpose of his mission; but he received orders instantly to quit the kingdom, without attempting so much as to disclose the nature of his instructions, since they could not but be derogatory to the dignity of the crown. A safe-conduct was granted for himself and his suite; but, at the same time, great surprise was expressed that any one should venture to appear, as envoy from his Holiness, at the court of Castile, after it had been treated by him with such unmerited indignity.
Far from resenting this ungracious reception, the legate affected the deepest humility; professing himself willing to waive whatever immunities he might claim as papal ambassador, and to submit to the jurisdiction of the sovereigns as one of their own subjects, so that he might obtain an audience. Cardinal Mendoza, whose influence in the cabinet had gained him the title of "third king of Spain," apprehensive of the consequences of a protracted rupture with the church, interposed in behalf of the envoy, whose conciliatory deportment at length so far mitigated the resentment of the sovereigns, that they consented to open negotiations with the court of Rome. The result was the publication of a bull by Sixtus the Fourth, in which his Holiness engaged to provide such natives to the higher dignities of the church in Castile, as should be nominated by the monarchs of that kingdom; and Alfonso de Burgos was accordingly translated to the see of Cuenca. [47] Isabella, on whom the duties of ecclesiastical preferment devolved, by the act of settlement, availed herself of the rights, thus wrested from the grasp of Rome, to exalt to the vacant sees persons of exemplary piety and learning, holding light, in comparison with the faithful discharge of this duty, every minor consideration of interest, and even the solicitations of her husband, as we shall see hereafter. [48] And the chronicler of her reign dwells with complacency on those good old times, when churchmen were to be found of such singular modesty, as to require to be urged to accept the dignities to which their merits entitled them. [49]