After the death of Corso, which occurred in the year 1308, the disturbances were appeased, and the people lived quietly till it was reported that the Emperor Henry was coming into Italy, and with him all the Florentine emigrants, to whom he had promised restoration to their country. The leaders of the government thought, that in order to lessen the number of their enemies, it would be well to recall, of their own will, all who had been expelled, excepting such as the law had expressly forbidden to return. Of the number not admitted, were the greater part of the Ghibellines, and some of those of the Bianchi faction, among whom were Dante Alighieri, the sons of Veri de' Cerchi and of Giano della Bella. Besides this they sent for aid to Robert, king of Naples, and not being able to obtain it of him as friends, they gave their city to him for five years, that he might defend them as his own people. The emperor entered Italy by the way of Pisa, and proceeded by the marshes to Rome, where he was crowned in the year 1312. Then, having determined to subdue the Florentines, he approached their city by the way of Perugia and Arezzo, and halted with his army at the monastery of San Salvi, about a mile from Florence, where he remained fifty days without effecting anything. Despairing of success against Florence, he returned to Pisa, where he entered into an agreement with Frederick, king of Sicily, to undertake the conquest of Naples, and proceeded with his people accordingly; but while filled with the hope of victory, and carrying dismay into the heart of King Robert, having reached Buonconvento, he died.
Shortly after this, Uguccione della Faggiuola, having by means of the Ghibelline party become lord of Pisa and of Lucca, caused, with the assistance of these cities, very serious annoyance to the neighbouring places. In order to effect their relief the Florentines requested King Robert would allow his brother Piero to take the command of their armies. On the other hand, Uguccione continued to increase his power;and either by force or fraud obtained possession of many castles in the Val d'Arno and the Val di Nievole; and having besieged Monte Cataini, the Florentines found it would be necessary to send to its relief, that they might not see him burn and destroy their whole territory. Having drawn together a large army, they entered the Val di Nievole where they came up with Uguccione, and were routed after a severe battle in which Piero the king's brother and 2,000 men were slain; but the body of the Prince was never found. Neither was the victory a joyful one to Uguccione; for one of his sons, and many of the leaders of his army, fell in the strife.
The Florentines after this defeat fortified their territory, and King Robert sent them, for commander of their forces, the Count d'Andria, usually called Count Novello, by whose deportment, or because it is natural to the Florentines to find every state tedious, the city, notwithstanding the war with Uguccione, became divided into friends and enemies of the king. Simon della Tosa, the Magalotti, and certain others of the people who had attained greater influence in the government than the rest, were leaders of the party against the king.
By these means messengers were sent to France, and afterward into Germany, to solicit leaders and forces that they might drive out the count, whom the king had appointed governor; but they failed of obtaining any. Nevertheless they did not abandon their undertaking, but still desirous of one whom they might worship, after an unavailing search in France and Germany, they discovered him at Agobbio, and having expelled the Count Novello, caused Lando d'Agobbio to be brought into the city as Bargello sheriff), and gave him the most unlimited power of the citizens. This man was cruel and rapacious; and going through the country accompanied with an armed force, he put many to death at the mere instigation of those who had endowed him with authority. His insolence rose to such a height, that he stamped base metal with the impression used upon the money of the state, and no one had sufficient courage to oppose him, so powerful had he become by the discords of Florence. Great, certainly, but unhappy city! which neither the memory of past divisions, the fear of her enemies, nor a king's authority, could unite for her own advantage; so that she found herself in a state of the utmost wretchedness, harassed without by Uguccione, and plundered within by Lando d'Agobbio.
The friends of the king and those who opposed Lando and his followers, were either of noble families or the highest of the people, and all Guelphs; but their adversaries being in power they could not discover their minds without incurring the greatest danger. Being, however, determined to deliver themselves from such disgraceful tyranny, they secretly wrote to King Robert, requesting him to appoint for his vicar in Florence Count Guido da Battifolle. The king complied; and the opposite party, although the Signory were opposed to the king, on account of the good quality of the count, did not dare to resist him.
Still his authority was not great, because the Signory and Gonfaloniers of the companies were in favor of Lando and his party.