Cesare certainly took no apparent active part in the affair. He lent Vitelli no aid; but neither did he attempt to restrain him or any other of the Borgia condottieri who were allied with him.
The unrest, spreading and growing sullenly a while, burst suddenly forth in Arezzo on June 4, when the cries of "Medici!" and "Marzocco!" rang in its streets, to announce that the city was in arms against the government of Florence. Arezzo followed this up by summoning Vitelli, and the waiting, watchful condottiero was quick to answer the desired call. He entered the town three days later at the head of a small body of foot, and was very shortly afterwards followed by his brother Giulio Vitelli, Bishop of Città di Castello, with the artillery, and, presently, by Gianpaolo Baglioni with a condotta of horse.
A few days later Vitelli was in possession of all the strongholds of the Val di Chiana, and panic-stricken Florence was speeding ambassadors hot-foot to Rome to lay her complaints of these matters before the Pope.
Alexander was able to reply that, far from supporting the belligerents, he had launched a Bull against them, provoked by the poisoning of the Bishop de'Pazzi.
Cesare looked on with the inscrutable calm for which Macchiavelli was presently to find him so remarkable. Aware as he was of the French protection which Florence enjoyed and could invoke, he perceived how vain must ultimately prove Vitelli's efforts, saw, perhaps, in all this the grave danger of ultimate ruin which Vitelli was incurring. Yet Vitelli's action served Cesare's own purposes, and, so that his purposes were served, there were no other considerations likely to weigh with that cold egotist. Let Vitelli be caught in the toils he was spinning, and be choked in them. Meanwhile, Florence was being harrowed, and that was all to Cesare's satisfaction and advantage. When sufficiently humbled, it might well befall that the Republic should come on her knees to implore his intervention, and his pardon for having flouted him.
While matters stood so in Arezzo, Pisa declared spontaneously for Cesare, and sent (on June 10) to offer herself to his dominion and to announce to him that his banner was already flying from her turrets—and the growth of Florence's alarm at this is readily conceived.
To Cesare it must have been a sore temptation. To accept such a pied-à-terre in Tuscany as was now offered him would have been the first great step towards founding that kingdom of his dreams. An impulsive man had surely gulped the bait. But Cesare, boundless in audacity, most swift to determine and to act, was not impulsive. Cold reason, foresight and calculation were the ministers of his indomitable will. He looked ahead and beyond in the matter of Pisa's offer, and he perceived the danger that might await him in the acceptance. The time for that was not yet. To take what Pisa offered might entail offending France, and although Cesare was now in case to dispense with French support, he was in no case to resist her opposition.
And so, the matter being considered and determined, Cesare quitted Rome on the 12th and left it for the Pope to give answer to the Pisan envoys in the Consistory of June 14—that neither his Holiness nor the Duke of Valentinois could assent to the proposals which Pisa made.
From Rome Cesare travelled swiftly to Spoleto, where his army, some ten thousand strong, was encamped. He was bent at last upon the conquest of Camerino, and, ever an opportunist, he had seized the moment when Florence, which might have been disposed to befriend Varano, Tyrant of Camerino, was over-busy with her own affairs.
In addition to the powerful army awaiting him at Spoleto, the duke had a further 2,000 men in the Romagna; another 1,000 men held themselves at his orders between Sinigaglia and Urbino, and Dionigio di Naldo was arming yet another 1,000 men at Verucchio for his service. Yet further to increase this force, Cesare issued an edict during his brief sojourn at Spoleto ordering every house in the Romagna to supply him with one man-at-arms.
It was whilst here—as he afterwards wrote to the Pope—that news reached him that Guidobaldo da Montefeltre, Duke of Urbino, was arming men and raising funds for the assistance of Camerino. He wrote that he could not at first believe it, but that shortly afterwards—at Foligni—he took a chancellor of Camerino who admitted that the hopes of this State were all founded upon Urbino's assistance; and later, a messenger from Urbino falling into his hands, he discovered that there was a plot afoot to seize the Borgia artillery as it passed through Ugubio, it being known that, as Cesare had no suspicions, the guns would be guarded only by a small force. Of this treachery the duke strongly expressed his indignation in his letter to the Pope.
Whether the matter was true—or whether Cesare believed it to be true—it is impossible to ascertain with absolute conviction. But it is in the highest degree unlikely that Cesare would have written such a letter to his father solely by way of setting up a pretext. Had that been his only aim, letters expressing his simulated indignation would have been in better case to serve his ends had they been addressed to others.
If Guidobaldo did engage in such an act, amounting to a betrayal, he was certainly paid by Cesare in kind and with interest. If the duke had been short of a pretext for carrying a drawn sword into the dominions of Guidobaldo, he had that pretext now in this act of enmity against himself and the Holy See.
First, however, he disposed for the attack upon Camerino. This State, lying on the Eastern spurs of the Apennines, midway between Spoleto and Urbino, was ruled by Giulio Cesare Varano, an old war-dog of seventy years of age, ruthless and bloodthirsty, who owed his throne to his murder of his own brother.
He was aided in the government of his tyranny by his four sons, Venanzio, Annibale, Pietro, and Gianmaria.
Several times already had he been menaced by Cesare Borgia, for he was one of the Vicars proscribed for the non-payment of tribute due to the Holy See, and at last his hour was come. Against him Cesare now dispatched an army under the command of Francesco Orsini, Duke of Gravina, and Oliverotto Eufreducci, another murderous, bloody gentleman who had hitherto served the duke in Vitelli's condotta, and who, by an atrocious act of infamy and brigandage, had made himself Lord of Fermo, which he pretended—being as sly as he was bloody—to hold as Vicar for the Holy See.
This Oliverotto Eufreducci—hereafter known as Oliverotto da Fermo—was a nephew of Giovanni Fogliano, Lord of Fermo. He had returned home to his uncle's Court in the early part of that year, and was there received with great honour and affection by Fogliano and his other relatives. To celebrate his home-coming, Oliverotto invited his uncle and the principal citizens of Fermo to a banquet, and at table contrived to turn the conversation upon the Pope and the Duke of Valentinois; whereupon, saying that these were matters to be discussed more in private, he rose from table and begged them to withdraw with him into another room.
All unsuspecting—what should old Fogliano suspect from one so loved and so deeply in his debt?—they followed him to the chamber where he had secretly posted a body of his men-at-arms. There, no sooner had the door closed upon this uncle, and those others who had shown him so much affection, than he gave the signal for the slaughter that had been concerted. His soldiers fell upon those poor, surprised victims of his greed, and made a speedy and bloody end of all.