His confidence was redoubled when, opening his designs to Gonzalvo, and telling him that he counted upon gaining Pisa and thence going on into Romagna, Ganzalva allowed him to recruit as many soldiers at Naples as he pleased, promising him two ships to embark with.

Caesar, deceived by these appearances, stopped nearly six weeks at Naples, every day seeing the Spanish governor and discussing his plans.

But Gonzalvo was only waiting to gain time to tell the King of Spain that his enemy was in his hands; and Caesar actually went to the castle to bid Gonzalvo good-bye, thinking he was just about to start after he had embarked his men on the two ships.

The Spanish governor received him with his accustomed courtesy, wished him every kind of prosperity, and embraced him as he left; but at the door of the castle Caesar found one of Gonzalvo's captains, Nuno Campeja by name, who arrested him as a prisoner of Ferdinand the Catholic.

Caesar at these words heaved a deep sigh, cursing the ill luck that had made him trust the word of an enemy when he had so often broken his own.
He was at once taken to the castle, where the prison gate closed behind him, and he felt no hope that anyone would come to his aid; for the only being who was devoted to him in this world was Michelotto, and he had heard that Michelotto had been arrested near Pisa by order of Julius II.
While Caesar was being taken to prison an officer came to him to deprive him of the safe-conduct given him by Gonzalvo.
The day after his arrest, which occurred on the 27th of May, 1504, Caesar was taken on board a ship, which at once weighed anchor and set sail for Spain: during the whole voyage he had but one page to serve him, and as soon as he disembarked he was taken to the castle of Medina del Campo.
Ten years later, Gonzalvo, who at that time was himself proscribed, owned to Loxa on his dying bed that now, when he was to appear in the presence of God, two things weighed cruelly on his conscience: one was his treason to Ferdinand, the other his breach of faith towards Caesar..