... Being set free and returned to their city, the time arrived for their new Priors to enter upon office, and among those who were drawn, was one named Giusto, a plebeian, but possessing great influence with his class, and one of those who had been imprisoned at Florence.  He, being inflamed with hatred against the Florentines on account of his public as well as personal injuries, was further stimulated by Giovanni di Contugi, a man of noble family, and his colleague in office, to induce the people, by the authority of the priors and his own influence, to withdraw their country from the power of the Florentines, and make himself prince.  Prompted by these motives, Giusto took arms, rode through the city, seized the Capitano, who resided in it, on behalf of the Florentines, and with the consent of the people, became lord of Volterra... (The History of Florence, Machiavelli, 1847)