In this unhappy state, the people not knowing what to do, Giano della Bella, of a very noble family, and a lover of liberty, encouraged the heads of the Arts to reform the constitution of the city; and by his advice it was ordered that the Gonfalonier should reside with the Priors, and have four thousand men at his command. They deprived the nobility of the right to sit in the Signory. They condemned the associates of a criminal to the same penalty as himself, and ordered that public report should be taken as evidence. By these laws, which were called the ordinations of justice, the people acquired great influence, and Giano della Bella not a small share of trouble; for he was thoroughly hated by the great, as the destroyer of their power, while the opulent among the people envied him, for they thought he possessed too great authority. This became very evident upon the first occasion that presented itself.
It happened that a man from the class of the people was killed in a riot, in which several of the nobility had taken a part, and among the rest Corso Donati, to whom, as the most forward of the party, the death was attributed. He was, therefore, taken by the captain of the people, and whether he was really innocent of the crime or the Capitano was afraid of condemning him, he was acquitted. This acquittal displeased the people so much, that, seizing their arms, they ran to the house of Giano della Bella, to beg that he would compel the execution of those laws which he had himself made. Giano, who wished Corso to be punished, did not insist upon their laying down their arms, as many were of opinion he ought to have done, but advised them to go to the Signory, complain of the fact, and beg that they would take it into consideration. The people, full of wrath, thinking themselves insulted by the Capitano and abandoned by Giano della Bella, instead of going to the Signory went to the palace of the Capitano, of which they made themselves masters, and plundered it.