Hence, it appears, that the government which commenced in Florence at the death of Giorgio Scali, in 1381, was first sustained by the talents of Maso degli Albizzi, and then by those of Niccolo da Uzzano.  The city remained tranquil from 1414 to 1422; for King Ladislaus was dead, and Lombardy divided into several parts; so that there was nothing either internal or external to occasion uneasiness.  Next to Niccolo da Uzzano in authority, were Bartolomeo Valori, Neroni di Nigi, Rinaldo degli Albizzi, Neri di Gino, and Lapo Niccolini.  The factions that arose from the quarrels of the Albizzi and the Ricci, and which were afterward so unhappily revived by Salvestro de’ Medici, were never extinguished; for though the party most favored by the rabble only continued three years, and in 1381 was put down, still, as it comprehended the greatest numerical proportion, it was never entirely extinct, though the frequent Balias and persecutions of its leaders from 1381 to 1400, reduced it almost to nothing.  The first families that suffered in this way were the Alberti, the Ricci, and the Medici, which were frequently deprived both of men and money; and if any of them remained in the city, they were deprived of the honors of government.  These oft-repeated acts of oppression humiliated the faction, and almost annihilated it.  Still, many retained the remembrance of the injuries they had received, and a desire of vengeance remained pent in their bosoms, ungratified and unquenched.  Those nobles of the people, or new nobility, who peaceably governed the city, committed two errors, which eventually caused the ruin of their party; the first was, that by long continuance in power they became insolent; the second, that the envy they entertained toward each other, and their uninterrupted possession of power, destroyed that vigilance over those who might injure them, which they ought to have exercised.  Thus daily renewing the hatred of a mass of the people by their sinister proceedings, and either negligent of the threatened dangers, because rendered fearless by prosperity, or encouraging them through mutual envy, they gave an opportunity to the family of the Medici to recover their influence.  The first to do so was Giovanni di Bicci de’ Medici, who having become one of the richest men, and being of a humane and benevolent disposition, obtained the supreme magistracy by the consent of those in power.  This circumstance gave so much gratification to the mass of the people (the multitude thinking they had now found a defender), that not without occasion the judicious of the party observed it with jealousy, for they perceived all the former feelings of the city revived.  Niccolo da Uzzano did not fail to acquaint the other citizens with the matter, explaining to them how dangerous it was to aggrandize one who possessed so much influence; that it was easy to remedy an evil at its commencement, but exceedingly difficult after having allowed it to gather strength; and that Giovanni possessed several qualities far surpassing those of Salvestro.  The associates of Niccolo were uninfluenced by his remarks; for they were jealous of his reputation, and desired to exalt some person, by means of whom he might be humbled.