"Moreover, since the rebellion and usurpation of Urbino have occurred during the above-mentioned misunderstandings, all the confederates aforesaid and each of them shall bind themselves to unite all their forces for the recovery of the estates aforesaid and of such other places as have revolted and been usurped.
"His Excellency the Duke of Romagna shall undertake to continue to the Orsini and Vitelli their ancient engagements in the way of military service and an the same conditions.
"His Excellency promises further not to insist on the service in person of more than one of them, as they may choose: the service that the others may render shall be voluntary.
"He also promises that the second treaty shall be ratified by the sovereign pontiff, who shall not compel Cardinal Orsino to reside in Rome longer than shall seem convenient to this prelate.
"Furthermore, since there are certain differences between the Pope and the lord Gian Bentivoglio, the confederates aforesaid agree that they shall be put to the arbitration of Cardinal Orsino, of His Excellency the Duke of Romagna, and of the lord Pandolfo Petrucci, without appeal.
"Thus the confederates engage, each and all, so soon as they may be required by the Duke of Romagna, to put into his hands as a hostage one of the legitimate sons of each of them, in that place and at that time which he may be pleased to indicate.
"The same confederates promising moreover, all and each, that if any project directed against any one of them come to their knowledge, to give warning thereof, and all to prevent such project reciprocally.
"It is agreed, over and above, between the Duke of Romagna and the confederates aforesaid, to regard as a common enemy any who shall fail to keep the present stipulations, and to unite in the destruction of any States not conforming thereto.
"(Signed) CAESAR, PAOLO ORSINO.
"AGAPIT, Secretary."
At the same time, while Orsino was carrying to the confederates the treaty drawn up between him and the duke, Bentivoglio, not willing to submit to the arbitration indicated, made an offer to Caesar of settling their differences by a private treaty, and sent his son to arrange the conditions: after some parleying, they were settled as follows:—
Bentivaglio should separate his fortunes from the Vitelli and Orsini;
He should furnish the Duke of Valentinois with a hundred men-at-arms and a hundred mounted archers for eight years;
He should pay 12,000 ducats per annum to Caesar, for the support of a hundred lances;
In return for this, his son Hannibal was to marry the sister of the Archbishop of Enna, who was Caesar's niece, and the pope was to recognise his sovereignty in Bologna;
The King of France, the Duke of Ferrara, and the republic of Florence were to be the guarantors of this treaty.
But the convention brought to the confederates by Orsino was the cause of great difficulties on their part. Vitellozza Vitelli in particular, who knew Caesar the best, never ceased to tell the other condottieri that so prompt and easy a peace must needs be the cover to some trap; but since Caesar had meanwhile collected a considerable army at Imala, and the four hundred lances lent him by Louis XII had arrived at last, Vitellozzo and Oliverotto decided to sign the treaty that Orsino brought, and to let the Duke of Urbino and the lord of Camerino know of it; they, seeing plainly that it was henceforth impassible to make a defence unaided, had retired, the one to Citta di Castello and the other into the kingdom of Naples.
But Caesar, saying nothing of his intentions, started on the 10th of December, and made his way to Cesena with a powerful army once more under his command. Fear began to spread on all sides, not only in Romagna but in the whole of Northern Italy; Florence, seeing him move away from her, only thought it a blind to conceal his intentions; while Venice, seeing him approach her frontiers, despatched all her troops to the banks of the Po. Caesar perceived their fear, and lest harm should be done to himself by the mistrust it might inspire, he sent away all French troops in his service as soon as he reached Cesena, except a hundred men with M. de Candale, his brother-in-law; it was then seen that he only had 2000 cavalry and 2000 infantry with him. Several days were spent in parleying, for at Cesena Caesar found the envoys of the Vitelli and Orsini, who themselves were with their army in the duchy of Urbino; but after the preliminary discussions as to the right course to follow in carrying on the plan of conquest, there arose such difficulties between the general-in-chief and these agents, that they could not but see the impossibility of getting anything settled by intermediaries, and the urgent necessity of a conference between Caesar and one of the chiefs. So Oliverotto ran the risk of joining the duke in order to make proposals to him, either to march an Tuscany or to take Sinigaglia, which was the only place in the duchy of Urbino that had not again fallen into Caesar's power. Caesar's reply was that he did not desire to war upon Tuscany, because the Tuscans were his friends; but that he approved of the lieutenants' plan with regard to Sinigaglia, and therefore was marching towards Fano.
But the daughter of Frederic, the former Duke of Urbino, who held the town of Sinigaglia, and who was called the lady-prefect, because she had married Gian delta Rovere, whom his uncle, Sixtus IV, had made prefect of Rome, judging that it would be impossible to defend herself against the forces the Duke of Valentinais was bringing, left the citadel in the hands of a captain, recommending him to get the best terms he could for the town, and took boat for Venice.
Caesar learned this news at Rimini, through a messenger from Vitelli and the Orsini, who said that the governor of the citadel, though refusing to yield to them, was quite ready to make terms with him, and consequently they would engage to go to the town and finish the business there. Caesar's reply was that in consequence of this information he was sending some of his troops to Cesena and Imola, for they would be useless to him, as he should now have theirs, which together with the escort he retained would be sufficient, since his only object was the complete pacification of the duchy of Urbino. He added that this pacification would not be possible if his old friends continued to distrust him, and to discuss through intermediaries alone plans in which their own fortunes were interested as well as his. The messenger returned with this answer, and the confederates, though feeling, it is true, the justice of Caesar's remarks, none the less hesitated to comply with his demand. Vitellozzo Vitelli in particular showed a want of confidence in him which nothing seemed able to subdue; but, pressed by Oliverotto, Gravina, and Orsino, he consented at last to await the duke's coming; making concession rather because he could not bear to appear more timid than his companions, than because of any confidence he felt in the return of friendship that Borgia was displaying.
The duke learned the news of this decision, so much desired, when he arrived at Fano on the 20th of December 1502. At once he summoned eight of his most faithful friends, among whom were d'Enna, his nephew, Michelotto, and Ugo di Cardona, and ordered them, as soon as they arrived at Sinigaglia, and had seen Vitellozzo, Gravina, Oliveratta, and Orsino come out to meet them, on a pretext of doing them honour, to place themselves on the right and left hand of the four generals, two beside each, so that at a given signal they might either stab or arrest them; next he assigned to each of them his particular man, bidding them not quit his side until he had reentered Sinigaglia and arrived at the quarters prepared far him; then he sent orders to such of the soldiers as were in cantonments in the neighbourhood to assemble to the number of 8000 on the banks of the Metaurus, a little river of Umbria which runs into the Adriatic and has been made famous by the defeat of Hannibal.
The duke arrived at the rendezvous given to his army on the 31st of December, and instantly sent out in front two hundred horse, and immediately behind them his infantry; following close in the midst of his men-at-arms, following the coast of the Adriatic, with the mountains on his right and the sea on his left, which in part of the way left only space for the army to march ten abreast.
After four hours' march, the duke at a turn of the path perceived Sinigaglia, nearly a mile distant from the sea, and a bowshot from the mountains; between the army and the town ran a little river, whose banks he