Paul was made more sensible of this by finding now, in his greatest need, the very arm withdrawn from him on which he most leaned for support. Tidings had reached the French camp of the decisive victory gained by the Spaniards at St. Quentin, and they were followed by a summons from the king to the duke of Guise, to return with his army, as speedily as possible, for the protection of Paris. The duke, who was probably not unwilling to close a campaign which had been so barren of laurels to the French, declared that "no chains were strong enough to keep him in Italy." He at once repaired to the Vatican, and there laid before his holiness the commands of his master. The case was so pressing, that Paul could not in reason oppose the duke's departure. But he seldom took counsel of reason, and in a burst of passion exclaimed to Guise, "Go, then; and take with you the consciousness of having done little for your king, still less for the Church, and nothing for your own honor."[176] Negotiations were now opened for an accommodation between the belligerents, at the town of Cavi. Cardinal Caraffa appeared in behalf of his uncle, the pope, and the duke of Alva for the Spaniards. Through the mediation of Venice, the terms of the treaty were finally settled, on the fourteenth of September, although the inflexible pontiff still insisted on concessions nearly as extravagant as those he had demanded before. It was stipulated in a preliminary article, that the duke of Alva should publicly ask pardon, and receive absolution, for having borne arms against the holy see. "Sooner than surrender this point," said Paul, "I would see the whole world perish; and this, not so much for my own sake as for the honor of Jesus Christ."[177] It was provided by the treaty, that the Spanish troops should be immediately withdrawn from the territory of the Church, that all the places taken from the Church should be at once restored, and that the French army should be allowed a free passage to their own country. Philip did not take so good care of his allies as Paul did of his. Colonna, who had done the cause such good service, was not even reinstated in the possessions of which the pope had deprived him. But a secret article provided that his claims should be determined hereafter by the joint arbitration of the pontiff and the king of Spain.[178]