The king heard him graciously, and replied that, on account of the war with Hungary, he could not fight against the Turks with whom he was in league. M. Caterino perceiving from this answer the disposition of this monarch, and that he would not be able to get either ambassadors or a letter written to Ussun Cassano, exhorted him in a long speech to make peace with the Hungarians, saying that since he would not make war on the Turks, at least he ought not to be the reason of Hungary’s not doing her duty by Christendom in this crisis, as she had been accustomed to do in so many other wars with the very same enemy; and so efficacious were his words, that Casimir having given an audience to the Hungarian ambassadors concluded and ratified a peace in three days. While M. Caterino was in Poland he found M. Paolo Ognibene, who was going as Nuncio from our most Illustrious Government to Ussun Cassano, and gave him letters written to the king, full of encouragement and warm words, exhorting him to persevere boldly in the war he had begun, as, then at any rate, he would be seconded by the Christian princes, when they saw him really begin to act against the Ottoman; and that he himself would not fail by importunity, and all the pains in his power, to express all his commissions to the Europeans from him. With these letters he also wrote in the same tenor to the King of Gorgora and to Melico, King of Mingrelia; and having bidden Ognibene God speed, he set out for Hungary. Being honourably received there by the King Matthias Corvinus,[253] who was the most illustrious sovereign in arms and learning, not only of the Hungarians, but also of all the kings of Christendom, he discoursed to him so powerfully about the commissions he had from Ussun Cassano, that the king, who was of himself much inclined to go to war with the Turks, promised that he would never fail a king who deserved so much from the Christian commonwealth. Then, having conversed more intimately with M. Caterino, and having recognised his valour and virtue, he dubbed him knight with many honours, as may be seen in the special grant made at Buda on the 20th April, 1474, in which are related all his works and exertions in this enterprise.