Manfredi, however, was finally reduced to the necessity of asking for an armistice to arrange the terms of surrender and the night of April 21st he was received by Caesar at his headquarters with marked courtesy. The terms of the capitulation were drawn up in Caesar’s name by Battista Orfino, and Michelotto Corella was placed in charge of the stronghold.

The brave Manfredi was to be allowed to go whithersoever he wished; his officers also were permitted to depart; the people and their property were to be respected; the coins struck by the prince were to remain current in the State; his debts were to be paid by Caesar, and to enable the people to regain their prosperity they were to be granted certain exemptions in the matter of taxes.

Manfredi, deceived by Caesar’s promises, instead of going to his friends and kinsmen in Bologna or Venice, accepted the Duke’s invitation to remain in his camp, and he probably stayed with Valentino until his arrival at the Vatican, June 17, 1501. A few days later he was flung into prison in the Castle of St. Angelo.

After the fall of Faenza Valentino directed his attention to Giovanni Bentivoglio, demanding possession of Castle Bolognese in the name of the Pope. When Bentivoglio learned that Caesar was advancing with troops he dispatched ambassadors, who were promptly seized by Vitellozzo, who had captured the strongholds of San Pietro, Frumina, Guelfo, and Medicina. Bentivoglio, seeing that Caesar was determined, decided to yield, but he cunningly planned to secure him as an ally at the same time. April 30, 1501, Paolo Orsini negotiated a treaty between Caesar and Bentivoglio by which, in return for the surrender of Castle Bolognese, the former was to serve the latter as condottiere for three years with adequate pay, in all undertakings except such as might be directed against the King of France. Caesar was also to furnish a certain number of troops. Giulio and Paolo Orsini and Vitellozzo Vitelli signed the treaty for Caesar, who had remained at Medicina and who was for the first time designated as the Duke of Romagna in this document, his father having just conferred this title upon him. Caesar’s consent to this arrangement is explained by the fact that the King of France had demanded the return of his troops and the Pope had instructed Valentino to come to Rome without molesting the Florentines.

Giuliano and Piero de’ Medici, anxious to recover possession of the city from which they had been expelled, proposed to enter into an alliance with Caesar. Giuliano joined him at Bologna, intending to remain on his staff as he advanced through Tuscany and rally his own adherents. Piero also came from Rome to join Caesar, who knew that their presence in his army and the hatred of his captains for Florence would constitute a menace to the Republic; he therefore refused to enter into any agreement with Piero, and on the way to Bisagno he compelled Giuliano to stop at Loiano.

Notwithstanding this the Signory of Florence felt that he had some sinister purpose with respect to themselves, consequently they sent Machiavelli to watch and study Caesar’s movements.

Valentino had asked permission to lead his troops through Florentine territory, and the request, with certain restrictions—among them one requiring him to avoid the fortified places—was granted. The Duke did not wait for the envoys but continued his march, and when they did appear he was already on Florentine territory. They threatened to lodge a complaint, but Valentino upbraided them for the attitude of their Government towards himself and his undertakings. He did not wish to declare himself an enemy of the Republic, but he needed time to consider the situation; he therefore made an appointment to meet the envoys again at Barberino di Mugello.

Owing to her long and exhausting war with Pisa and to her intestine troubles Florence was in no position to risk a struggle with the Duke of Romagna; the Signory had therefore decided to grant his request. Appreciating the danger of having a large number of armed men in their territory, the Council of Ten made arrangements for resisting any sudden attack. Caesar finally entered into an alliance, both offensive and defensive, with Florence, and the Signory took him into its employ as condottiere, furnishing him the number of troops befitting his rank and promising him suitable remuneration. The arrangement was for three years.

Caesar had agreed to continue his march as soon as the convention was signed, but May 17th he was still at Forno dei Campi, and he asked for half the artillery belonging to Florence for use against Piombino and also for his first quarter’s salary. The Signory replied that these requests were not included in the agreement, and Caesar did not insist. He, however, dispatched Vitellozzo Vitelli to the Pisans to demand their siege pieces. On the march towards Pisa Caesar’s troops committed great depredation, sacking, burning, and plundering. His captains, the Orsini and Vitelli—especially the latter, whose brother had been executed by the Florentines—may have been responsible for this. The Pope had sanctioned Caesar’s undertaking with respect to Piombino, whose lord, Giacomo d’Appiano, after a feeble resistance before the city, retired to the stronghold, which was well fitted to resist a siege. Here it was that Giacomo’s grandfather had bravely defended himself fifty years before against the ferocious condottiere Sigismondo Malatesta, son of Pandolfo, Lord of Rimini.

By his agreement with Louis XII. Caesar was compelled to join the French army about the middle of June. He therefore left a part of his forces to invest Piombino, which surrendered to his lieutenants after a two-months siege, and set out for Rome, where he arrived June 17, 1501. His purpose in coming to Rome at this time was to join the French army which was about to set forth for Naples. While in the city he concealed himself from public gaze in the apostolic palace, rarely showing himself.