The quarrel thus begun came to crisis in 1300, the famous year of the jubilee, when Boniface VIII seemed to hold the whole world in his hands. The dissensions in Florence had not been lost upon the Pope, who, apparently hoping to repress the Republic altogether and win the obedience of the city, intrigued with the Neri, those among the magnates who, unlike their fellows of the Bianchi faction, among whom Dante is the most conspicuous figure, refused to admit the Ordinances of Justice, even in their revised form, and wished for the tyrannical rule of the old Parte Guelfa. Already, as was well known, the Pope was pressing Albert of Austria for a renunciation of the Imperial claim over Tuscany in favour of the Holy See; and Florence, finally distracted now by the quarrels of Neri and Bianchi, seemed to be in imminent danger of losing her liberty. It became necessary to redress the balance of power, destroyed at Benevento, by an attempt to recreate the Empire. This was the real work of the Bianchi—their solution of the greatest question of their time. The actual solution was to come, however, from their opponents: not from the leaders of the Neri it is true, but from the people themselves. These leaders were but tyrants in disguise: they served any cause to establish their own lordship. Corso Donati, for instance, the head and front of the Neri, was of an old Ghibelline stock, yet he trafficked with the Pope, not for the Church, we may be sure, nor to give Florence to the Holy See, but that he might himself rule the city. Nor did the Pope disdain to use him. Alarmed even in Rome by the republican sentiments of the populace, who wished to rule themselves even as the Florentines, he desired above all things to bring Florence into his power. On May 15, 1300, the Pope despatched a letter to the Bishop of Florence, in which he asked: "Is not the Pontiff supreme lord over all, and particularly over Florence, which for especial reasons is bound to be subject to him? Do not emperors and kings of the Romans yield submission to us, yet are they not superior to Florence? During the vacancy of the Imperial throne, did not the Holy See appoint King Charles of Anjou Vicar-General of Tuscany?" Thus as Villari says, "in a rising crescendo," he threatened the Florentines that he would "not only launch his interdict and excommunication against them, but inflict the utmost injury on their citizens and merchants, cause their property to be pillaged and confiscated in all parts of the world, and release all their debtors from the duty of payment." The Neri, fearing the people might, with that impudent claim before them, side with the Bianchi, induced the Pope to send the Cardinal of Acquasparta to arrange a pacification. But though the city gave him many promises, she would not invest him with the Balia.
Meanwhile the Pope, set on the subjection of Florence, without counting the cost, urged Charles of Valois, the brother of Philip IV of France, to march into Tuscany. Nor was Charles of Anjou, King of Naples, less eager to have his aid against the Sicilians. Joined by the exiles in November, 1301, he entered Florence with some 1200 horse, part French, part Italian. His mission was to crush the Bianchi and the people, and to uplift the Neri. He came at the request of the Pope, and, so far as he himself was interested, for booty; yet he swore in S. Maria Novella to keep the peace. On that same day, November 5, Corso Donati entered the city with an armed force. The French joined in the riot, the Priors were driven from their new palace, and the city sacked by the soldiers with the help of the Neri. The Pope had succeeded in substituting black for white, that was all. A new "peace-maker" failed altogether. The proscription, already begun, continued, and before January 27, 1302, Dante went into exile.
But if the Pope had failed to do more than establish the Neri in the government of Florence, Corso Donati had failed also; he had not won the lordship of the city. He tried again, splitting the Neri into two factions, and Florence was not to possess herself in peace till his death in a last attempt in 1308. It was during these years so full of disaster that Petrarch was born at Arezzo on July 20, 1304.
The medieval idea of the Papacy has been expressed once and for all by S. Thomas Aquinas. In his mind so profoundly theological, abhorring variety, the world was to be governed, if at all, by a constitutional monarchy, strong enough to enforce order, but not to establish a tyranny. The first object of every Christian society, the salvation of the soul, was to be achieved by the priest under the absolute rule of the Pope. Under the old dispensation, as he admitted, the priest had been subject to the king, but under the new dispensation the king was subject to the priest in matters touching the law of Christ. Thus if the king were careless of religion or schismatic or heretical, the Church might deprive him of his power and by excommunication release his subjects from their allegiance. This supreme authority is vested in the Pope, who is infallible, and from whom there can be no appeal at any time as to what is to be believed or what condemned.
Before these claims the Empire had fallen in 1266; but a reaction, the result of the success of Boniface, soon set in, and we find the most perfect expression of the revived and reformed claims of the Empire in the De Monarchia, which Dante Alighieri wrote in exile. Dante's Empire was by no means merely a revival of what the Imperial idea had become in its conflicts with the Holy See. It was nevertheless as hopeless an anachronism as the dream of S. Thomas Aquinas, and even less clairvoyant of the future, for it disregarded altogether the spirit to which the future belonged, the spirit of nationalism. With a mind as theological as S. Thomas's, Dante hated variety not less than he, and rather than tolerate the confusion of the innumerable cities and communes into which Italy was divided, where there was life, he would have thrust the world back into Feudalism and the Middle Age from which it was already emerging, he would have established over all Italy a German king. He was dreaming of the Roman Empire. The end for which we must strive, he would seem to say in the De Monarchia, that epitaph of the Empire, is unity; let that be granted. And since that is the end of all society, how shall we obtain it but by obedience to one head—the Emperor. And this Empire—so easy is it to mistake the past for the future—belongs of right to the Roman people who won it long ago. And what they won Christ sanctioned, for He was born within its confines. And yet again He recognised it, for He received at the hands of a Roman judge the sentence under which He bore our sorrows. Nor does the Empire derive from the Pope or through the Pope, but from God immediately; for the foundation of the Church is Christ, but the Empire was before the Church. Yet let Cæsar be reverent to Peter, as the first-born should be reverent to his father.
So much for the philosophical defence of the reaction. It is rarely, after all, that a rigidly logical conception of society, of the State, has any existence in reality. The future, as we know, lay with quite another theory. Yet which of us to-day but in his secret heart dreams ever more hopefully of a new unity, that is indeed no stranger to the old, but in fact the resurrection of the Empire, of Christendom, in which alone we can be one? After all, is it not now as then, the noblest hope that can inspire our lives?
Already, before the death of Boniface VIII, the last Pope to die in Rome for nearly a hundred years, Philip IV of France had asserted the rights of the State against the claims of the Papal monarchy. The future was his, and his success was to be so great that for more than seventy years the Papacy was altogether under the influence of France, the first of the great nations of the Continent to become self-conscious. Thus when Boniface died broken-hearted in 1303, it was the medieval Papacy which lay in state beside him. Two years later, after the pathetic and ineffectual nine months' reign of Benedict XI, Clement V, Bertrand de Goth, an Aquitanian, was elected, and, like his predecessor, fearful before the turbulent Romans and the confusion of Italy, in 1305 fled away to Avignon, which King Charles II of Naples held as Count of Anjou on the borders of the French kingdom. The Papacy had abandoned the Eternal City and had come under the influence of the French king. Yet in spite of every disaster the Pope and the Emperor remained the opposed centres of European affairs. No one as yet realised the possibility of doing without them, but each power sought rather to use them for its own end. In this political struggle France held the best position; the Pope was a Frenchman and so her son; there remained as spoil, the Empire.
On May 1, 1308, Albert of Hapsburg had been murdered by his nephew; the election of a new King of the Romans, the future Emperor, fell pat to Philip's ambitions. He immediately supported the candidature of his brother, Charles of Valois; but in this he reckoned without the Pope, who with the Angevins in Naples and himself in Avignon had no wish to see the Empire also in the hands of France. His position forbade him openly to oppose Philip, but secretly he gave his support to Henry of Luxemburg, who was elected as Henry VII on 27 November, 1308.
A German educated in France, the lord of a petty state, Henry, in spite of the nobility of his nature, of which we hear so much and see so little, had but feeble Latin sympathies and no real power of his own. He dreamed of the universal empire like a true German, believing that the feudal union of Germany and Italy which had always been impossible was the future of the world. With this mirage before his eyes he raised the imperial flag and set out southward; and for a moment it seemed as though the stars had stopped in their courses.
For he was by no means alone in his dream. Every disappointed ambition in Italy, noble and ignoble, greeted him with a feverish enthusiasm. The Bianchi and the exiled Ghibellines joined hands, enormous hopes were conceived, and in his triumph private vengeance and public hate thought to find achievement. But when Henry entered Italy in September, 1310, he soon found he had reckoned without the Florentines, who had called together the Guelf cities, and, leaguing themselves with King Robert the Wise of Naples, formed what was, in fact, an Italian confederation to defend freedom and their common independence. It is true that in these acts Florence thought only of present safety: she was both right and fortunate; but in allying herself with King Robert and espousing the cause of France and the Pope she contributed to that triumph which was to prove for centuries the most dangerous of all to Italian liberty and independence.