Savonarola went on an embassy to Charles' camp and made better terms than the Florentines had expected. Nevertheless, they had to endure the procession of French troops through their town, and found it difficult to get rid of Charles VIII, whose cupidity was aroused when he beheld the wealth of Florence. There was tumult in the streets, where soldiers brawled with citizens and enraged their hosts by insults. The Italian blood was greatly roused when the invading monarch threatened "to sound his trumpets" if his demands were not granted. "Then we will ring our bells," a bold citizen replied. The French King knew how quickly the town could change to a stronghold of barricaded streets if such an alarm were given, and wisely refrained from further provocation. He passed on his way after "looting" the palace in which he had been lodged. The Medicean treasures were the trophies of his visit.

In spite of himself, the monk had to turn politician after the French army had gone southward. He was said to have saved the State, and was implored to assume control now that the tyranny was at an end. There was a vision before him of Florence as a free Republic in the truest sense. He took up his work gladly for the cause of liberty. The Parliamento, a foolish assembly of the people which was summoned hastily to do the will of any faction that could overawe it, was replaced by the Great Council formed on a Venetian model. In this sat the benefiziati—those who had held some civic office, and the immediate descendants of officials. Florence was not to have a really democratic government.

After the cares of government, Savonarola felt weary in mind and body; he had never failed to preach incessantly in the cathedral, where he expounded his schemes for reform without abandoning his work as prophet. He broke down, but again took up his burden bravely. Florence was a changed city under his rule. Women clothed themselves in the simplest garb and forsook such vanities as wigs and rouge-pots. Bankers, repenting of greed, hastened to restore the wealth they had wrongly appropriated. Tradesmen read their Bibles in their shops in the intervals of business, and were no longer to be found rioting in the streets. The Florentine youths, once mischievous to the last degree, attended the friar daily, and actually gave up their stone-throwing. "Piagnoni" (Snivellers) was the name given to these enthusiasts, for the godly were not without opponents.

Savonarola had to meet the danger of an attempt to restore the authority of Piero dei Medici. He mustered eleven thousand men and boys, when a report came that the tyrant had sought the help of Charles VIII against Florence. The Pope, also, wished to restore Piero for his own ends. In haste the citizens barred their gates and then assembled in the cathedral to hearken to their leader.

Savonarola passed a stern resolution that any man should be put to death who endeavoured to destroy the hard-won freedom of his city. "One must treat these men," he declared, "as the Romans treated those who sought the recall of Tarquinius." His fiery spirit inflamed the Florentines with such zeal that they offered four thousand gold florins for the head of Piero dei Medici.

The attempt to force the gates of Florence proved a failure. Piero had to fly to Rome and the Prior's enemies were obliged to seek a fresh excuse for attacking his position. The Pope was persuaded to send for him that he might answer a charge of disseminating false doctrines. The preacher defended himself vigorously, and seemed to satisfy Alexander Borgia, whose aim was to crush a reformer of the Catholic Church likely to attack his evil practices. He was, however, forbidden to preach, and had to be silent at the time when Florence held her carnival.

The extraordinary change in the nature of this festival was a tribute to the influence of Savonarola. Children went about the streets, chanting hymns instead of the licentious songs which Lorenzo dei Medici had written for the purpose. They begged alms for the poor, and their only amusement was the capannucci, or Bonfire of Vanities, for which they collected the materials. Books and pictures, clothes and jewels, false hair and ointments were piled in great heaps round a kind of pyramid some sixty feet in height. Old King Carnival, in effigy, was placed at the apex of the pyramid, and the interior was filled with comestibles that would set the whole erection in a blaze as soon as a taper was applied. When the signal was given, bells pealed and trumpets sounded glad farewell to the customs of the ancient carnival. The procession set forth from San Marco on Palm Sunday (led by white-robed children with garlands on their heads), and went round the city till it came to the cathedral. "And so much joy was there in all hearts that the glory of Paradise seemed to have descended on earth and many tears of tenderness and devotion were shed." So readily did Florentines confess that the new spirit of Christianity brought more satisfaction than the noisy licence of a pagan festival.

In 1496 the Pope not only allowed Savonarola to preach, but even offered him a Cardinal's Hat on condition that he would utter no more predictions. "I want no other red hat but that of martyrdom, reddened by my own blood," was the firm response of the incorruptible preacher. He was greeted by joyful shouts when he mounted to the pulpit of the Duomo, and had reached the height of his popularity in Florence.

When a year had passed, Savonarola faced a different world, where friends were fain to conceal their devotion and enemies became loud in their constant menaces. The Arrabiati (enraged) had overcome the Piagnoni and induced the Pope to pronounce excommunication against the leader of this party. The sermons continued, the Papal decree was ignored, but a new doubt had entered the mind of Florentines. A Franciscan monk, Francesco da Puglia, had attacked the Dominican, calling him a false prophet and challenging him to prove the truth of his doctrines by the "ordeal by fire."

Savonarola hesitated to accept the challenge, knowing that he would be destroyed by it, whatever might be the actual issue. The Piagnoni showed some chagrin when he allowed a disciple, Fra Domenico, to step into his place as a proof of devotion. On all sides there were murmurs at the Prior's strange shrinking and obvious reluctance to meet with a miracle the charges of his opponents.