Ghibellines called the people on all sides to arms and liberty. On the 1st of July, 1288, Ugolino was besieged in the palace of the signoria; the insurgents, unable to vanquish the obstinate resistance opposed to them by himself, his sons, and his adherents, set fire to the palace; and, having entered it amidst the flames, dragged forth Ugolino, two of his sons, and two of his grandsons, and threw them into the tower of the Sette Vie. The key was given to the archbishop, from whom was expected the vigilance of an enemy, but the charity of a priest. That charity, however, was soon exhausted; the key after a few months was thrown into the river; and the wretched count perished in those agonies of hunger, and of paternal and filial love, upon which poetry, sculpture, and painting have conferred celebrity. The victory over Count Ugolino, achieved by the most ardent of the Ghibellines, redoubled the enthusiasm and audacity of that party, and soon determined them to renew the war with the Guelfs of Tuscany. Notwithstanding the danger into which the republic was thrown by the ambition of the last captain-general, it continued to believe, when engaged in a hazardous war, that the authority of a single person over the military, the finances, and the tribunals was necessary to its protection; and it trusted that the terrible chastisement just inflicted on the tyrant would hinder any other from following his example. Accordingly Guido de Montefeltro was named captain. He had acquired a high reputation in defending Forlì against the French forces of Charles of Anjou; and the republic had not to repent of its choice. He recovered by force of arms all the fortresses which Ugolino had given up to the Lucchese and Florentines. The Pisan militia, whom Montefeltro armed with crossbows, which he had trained them to use with precision, became the terror of Tuscany. The Guelfs of Florence and Lucca were glad to make peace in 1293. FLORENCE; THE FEUD OF THE BIANCHI AND THE NERI [Sidenote: [1292-1300 A.D.]]