But little remains of the many palaces and towers of this once powerful family. Several stood in the Corso, nearly opposite to those of the Portinari, where two of their grey towers still frown defiance at passers-by and a small square bears their name. Here lived Manetto Donati, whose daughter Gemma became the wife of Dante. Forese Donati was one of the poet’s dearest friends, whilst his brother Corso, of whom more anon, became his deadliest enemy. Their sister, the beautiful Piccarda, who took the habit of S. Clare as a young girl, but was torn from her quiet convent and forced by Corso Donati to break her vows and marry, is one of the most touching figures in the Paradiso. Other Donati palaces, amongst them that of the famous Corso, stood round the church of S. Piero Maggiore founded by the family in the IXth century. Several of them joined the Crusades and died in the Holy Land, and many were made Knights of the Golden Spur by the Emperors Henry II. and Conrad of Swabia. Rivalry had always existed between the Donati and the Cerchi; it became acute when the Neri, or Black Party, came from Pistoja to seek aid from Corso Donati, and the Bianchi, or White Party, turned for help to Vieri de’ Cerchi. “The Priors and other good citizens,” writes Machiavelli, “feared every hour that they would come to blows, and the city be divided into two camps. They therefore appealed to the Pope, praying him to use his authority and put an end to these quarrels with which they were unable to cope. The Holy Father sent for Messer Vieri, and commanded him to make peace with the Donati. At this he expressed astonishment, saying he bore them no malice, and as making peace implied the existence of war, he could not see why, there being no war, it should be necessary to make peace. So Messer Vieri returned from Rome without concluding anything, and the ill-feeling grew apace.... Men being in this excited state, it happened that the Cerchi and the Donati met at a funeral service, and from words came to blows; but for the moment the tumult was appeased. Then the Cerchi decided to attack the Donati, but were repulsed by the bravery of Messer Corso, and many of their followers were wounded. The whole city was in a tumult, the Signori and the laws were trodden under foot by the fury of the more powerful. The Donati and their party were afraid because they were the weaker, so Messer Corso summoned the heads of the Blacks and the Captains of the Party, and it was decided to ask the Pope to send one of royal blood to reform the city, thinking thereby to break the power of the Whites. The meeting and its deliberation was notified to the Priors, and magnified by the adverse party into a plot against liberty. As both sides had armed the Signori, of whom Dante was one [1301], animated by his advice and tranquil courage, called the people to arms, and then forced the leaders of the opposite factions to disarm, and banished Messer Corso Donati with many of the Black Party.”

Messer Corso went to Rome and persuaded the Pope to send Charles of Valois, brother of the King of France, who was on his way to Sicily, to pacify Florence. After swearing solemnly to preserve peace Charles armed his followers, and the alarm in the city was not lessened by the arrival of Corso with all the exiles. The prisons were burst open, the Priors relegated to private life, and for five days the houses of the White Party were given up to plunder and arson. A new Signoria was elected, entirely formed of the Blacks, and Charles named Cante di Gabbrielli, one of his adherents, Podestà. Proscriptions commenced, and one of the first names on the list was that of Dante.

Machiavelli describes Corso Donati as “a promoter of every disagreement and every tumult; all who desired to attain anything extraordinary turned to him, so that he was hated by many citizens of repute.... But the authority wielded by him was such that he was feared by all. To deprive him of the popular favour it was spread about that he sought to seize the State, to which his magnificent way of living, far beyond the ordinary, lent colour. After he had taken to wife the daughter of Uguccione della Faggiuola, head of the Ghibelline and the White Party, and most powerful in Tuscany, this report gained more credit. The marriage encouraged his enemies and induced the people to abandon him, and many joined his adversaries. Their leaders were Rosso della Tosa, Pazzino de’ Pazzi, Geri Spini and Berto Brunelleschi who, with their followers, and a great concourse of people, went armed to the palace of the Signori. The Signori ordered Piero Branca, Captain of the People, to accuse Messer Corso of desiring to make himself tyrant of Florence by the aid of Uguccione. He was cited to appear, and then condemned as a rebel in contumaciam, and only two hours elapsed between the accusation and the condemnation. After the delivery of the sentence the Signori and the Compagnie of the People, with their banners, went to take him. Messer Corso, whose courage failed not when he saw himself abandoned by many and heard of his condemnation, was not abashed by the authority of the Signori or the number of his assailants, but fortified his houses, hoping to be able to defend himself until the arrival of Uguccione, to whom he had sent for help. His houses and the streets near by had been closed by him and fortified by his adherents, and their defence was so valiant that the people, although numerous, could not advance. The struggle was great, with dead and wounded on both sides. Seeing that nothing was to be done in the open the people took possession of the houses adjoining his and, breaking through the walls, burst into his house. Finding himself surrounded by enemies and despairing of victory, or of aid from Uguccione, Messer Corso decided to try and save his life. Placing himself and Gherardo Bordoni at the head of some of his strongest and most trusted friends, he charged the enemy with such impetuosity that they fell back, and fighting he was able to pass through their ranks and leave the city by the Porta Sta. Croce. Many, however, pursued him, Gherardo was killed on the banks of the Affrico by Boccaccio Cavicciulli, whilst some Catalan horsemen, soldiers of the Signoria, came up with Messer Corso at Rovezzano and took him prisoner. On the way back to Florence, to avoid meeting his victorious enemies face to face and being tortured by them, he threw himself off his horse, and thus, lying on the ground, was killed by one of his captors. The monks of S. Salvi found his body and buried it without any honours. Such was the end of Messer Corso, to whom both his country and the Black Party owed much good and much ill. Had his disposition been of a gentler kind, his memory would be more honoured.” Dino Compagni says that Corso Donati was ill and suffering from gout at the time of his flight. “Much talk there was of the evil manner of his death, according as to whether they were friends or enemies,” continues the old chronicler, “but to speak truthfully his life was perilous [for the quiet of Florence] and his death was blameworthy. He was a knight of great courage and of old name, of gentle blood and well-mannered, very handsome, even in his old age, finely built, with delicate features and a pale complexion; a pleasant, wise and ornate speaker, and always occupied with important affairs, a consort and a friend of great lords and noble persons, counting many adherents and renowned throughout Italy. He was an enemy to the people and to popular government, well-loved by his partisans, but full of evil designs, wicked and astute.”