Francesco di Camillo Petrucci, the son of a younger brother of Pandolfo, who had been at the head of the government during the Cardinal's absence, now seized the chief power; while part of the citizens looked to the imperial agents in Rome for the restoration of their liberties, and another part desired the recall of Pandolfo's youngest son Fabio--Borghese having gone mad at Naples. Francesco's tyrannical behaviour and his murder of Marcello Saracini disgusted all classes. Pope Clement VII., who intended to marry Fabio Petrucci with the daughter of Galeotto de' Medici, summoned Francesco to Rome and kept him there, while Fabio, in December 1523, entered Siena. Fabio was a youth of eighteen years of age, excessively handsome and winning in manners, most incompetent and more dissolute than even Borghese had been. The Sienese stood his mercenaries and his unsavoury amours for about nine months. On September 18th, 1524, there was a general rising against him, headed by Giovanni Martinozzi, Mario Bandini and Giovanni Battista Piccolomini. Fabio's mercenaries occupied the Palazzo, while his few remaining friends assembled in the house of Alessandro Bichi. There was prolonged fighting in the Campo, in the Piazza Tolomei, at the Croce del Travaglio, the adherents of Fabio raising the Florentine shout of "Marzocco" only to be drowned by the swelling thunder of "Popolo e Libertà!" Had Fabio held his ground for a couple of days more, aid would have been forthcoming from the Florentines and the Pope; but his heart failed him and, rejecting the compromise which the leaders of the revolution offered him, he fled at nightfall through the Porta Tufi and escaped to Florence. Thus ignominiously ended the tyranny of the Petrucci in Siena. CHAPTER IV _The Sculptors and Painters of Siena_