The contemporaneous historians tell us that at the conclusion of this account the sovereigns were so affected that their eyes filled with tears of gratitude, and that they fell upon their knees and poured forth their thanks to God for the great blessing of this discovery. The _Te Deum_ was sung by the choir of the chapel, and Las Casas remarks that it seemed as if “in that hour they communicated with celestial delights.” It is not strange that in this mood the monarchs were ready, not only to continue, but even to extend the authority already bestowed upon Columbus. Accordingly, they confirmed the grants made at Santa Fé the year before, they granted him the royal arms of Castile and Leon, and for his sake they conferred special honours on his brothers Bartholomew and Diego. Columbus in turn committed himself to great things in the future. His ordinary religious fervour seems to have been greatly reinforced by the ceremonies of the day. In his desire to promote the conquest of the Holy Sepulchre he now went so far as to make a solemn vow that for this purpose he would furnish within seven years an army consisting of four thousand horse and fifty thousand foot, and that he would also provide a similar force within the next five years that should follow. It was unquestionably a weakness of Columbus that he was always prone to promise more than he could fulfil. This is perhaps the besetting fault of very fervid natures. But the consequences are often far reaching. Columbus thus prepared the way, or at least gave the opportunity, for virulent criticism and even hostility. Not a few of the old nobility had been piqued by the honours conferred upon a parvenu and a foreigner. All such were ready to organize an attack if the new favourite should show any weakness or fail to fulfil any of his promises. This important element in the situation should prepare us to understand much of what is to follow. In all affairs of international interest in the fifteenth century the Roman pontiff played a conspicuous part. There were unusual reasons why a formal announcement to the Pope of the success of Columbus should be made without delay. Such announcement was prompted, not only by the importance of the discovery, but also by the religious motive that formed so large an element in the purpose of the discoverer. But there was an additional reason. As we have already seen, the king of Portugal had hinted that the newly discovered lands, in view of the treaty of 1479, would be found to belong to himself rather than to the monarchs of Castile and Aragon. The Pope was the international mediator in all questions of this kind. The Spanish sovereigns accordingly determined to turn to the Pope without delay.