This law being re-established, and a magistracy created to carry it into effect, the nobility assembled, and went to Cosmo to beg he would rescue them and himself from the power of the plebeians, and restore to the government the reputation which had made himself powerful and them respected.  He replied, he was willing to comply with their request, but wished the law to be obtained in the regular manner, by consent of the people, and not by force, of which he would not hear on any account.  They then endeavored in the councils to establish a new balia, but did not succeed.  On this the grandees again came to Cosmo, and most humbly begged he would assemble the people in a general council or parliament, but this he refused, for he wished to make them sensible of their great mistake; and when Donato Cocchi, being Gonfalonier of Justice, proposed to assemble them without his consent, the Signors who were of Cosmo’s party ridiculed the idea so unmercifully, that the man’s mind actually became deranged, and he had to retire from office in consequence.  However, since it is undesirable to allow matters to proceed beyond recovery, the Gonfalon of Justice being in the hands of Luca Pitti, a bold-spirited man, Cosmo determined to let him adopt what course he thought proper, that if any trouble should arise it might be imputed to Luca and not to himself.  Luca, therefore, in the beginning of his magistracy, several times proposed to the people the appointment of a new balia; and, not succeeding, he threatened the members of the councils with injurious and arrogant expressions, which were shortly followed by corresponding conduct; for in the month of August, 1458, on the eve of Saint Lorenzo, having filled the piazza, and compelled them to assent to a measure to which he knew them to be averse.  Having recovered power, created a new balia, and filled the principal offices according to the pleasure of a few individuals, in order to commence that government with terror which they had obtained by force, they banished Girolamo Machiavelli, with some others, and deprived many of the honors of government.  Girolamo, having transgressed the confines to which he was limited, was declared a rebel.  Traveling about Italy, with the design of exciting the princes against his country, he was betrayed while at Lunigiana, and, being brought to Florence, was put to death in prison.

This government, during the eight years it continued, was violent and insupportable; for Cosmo, being now old, and through ill health unable to attend to public affairs as formerly, Florence became a prey to a small number of her own citizens.  Luca Pitti, in return for the services he had performed for the republic, as made a knight, and to be no less grateful than those who had conferred the dignity upon him, he ordered that the priors, who had hitherto been called priors of the trades, should also have a name to which they had no kind of claim, and therefore called them priors of liberty.  He also ordered, that as it had been