The rage of the multitude being appeased by their blood, an agreement was made that the duke and his people, with whatever belonged to him, should quit the city in safety; that he should renounce all claim, of whatever kind, upon Florence, and that upon his arrival in the Casentino he should ratify his renunciation. On the sixth of August he set out, accompanied by many citizens, and having arrived at the Casentino he ratified the agreement, although unwillingly, and would not have kept his word if Count Simon had not threatened to take him back to Florence. This duke, as his proceedings testified, was cruel and avaricious, difficult to speak with, and haughty in reply. He desired the service of men, not the cultivation of their better feelings, and strove rather to inspire them with fear than love. Nor was his person less despicable than his manners; he was short, his complexion was black, and he had a long, thin beard. He was thus in every respect contemptible; and at the end of ten months, his misconduct deprived him of the sovereignty which the evil counsel of others had given him. CHAPTER IX Many cities and territories, subject to the Florentines, rebel--Prudent conduct adopted upon this occasion--The city is divided into quarters--Disputes between the nobility and the people--The bishop endeavors to reconcile them, but does not succeed--The government reformed by the people--Riot of Andrea Strozzi--Serious disagreements between the nobility and the people--They come to arms, and the nobility are subdued--The plague in Florence of which Boccaccio speaks.