After Visconti came famine, and after the famine the Black Death. Seventy in every hundred of the population died, Tronci tells us,[38] while during the famine, bread, such as it was, had to be distributed every day at the taverns. Then followed a revolution in the city. Count Raniero of the Gherardesca house had succeeded to the Captain-Generalship of Pisa as though it were his right by birth. This brought him many enemies; and, indeed, the city was in uproar for some years: for, while he was so young, Dino della Rocca acted for him. Among the more powerful enemies of della Rocca was Andrea Gambacorti, whose family was soon to enslave the city. Now the one party was called _Bergolini_, for they had named Raniero Bergo for hate, and of these Gambacorti was chief. The other party which was at this time in power, as I have said, was named _Raspanti_, which is to say graspers, and of them Dino della Rocca was head. In the midst of this disputing Raniero died, and the Raspanti were accused of having murdered him, among others by Gambacorti. Every sort of device to heal these wounds was resorted to; marriages and oaths all alike failed. The city blazed with their arson every night, till at last the people rose and expelling the Raspanti, chose Andrea Gambacorti for captain. This happened in 1348. Seven years later, Charles IV, on his way to Rome to be crowned, came to the city. Now the Conte di Montescudaio was known to Charles, who years before had ruled in Lucca; therefore the Raspanti, of when Montescudaio was one, took heart, and at the moment when Charles was in the Duomo receiving the homage of the city, they roused the people assembled in the Piazza, shouting for the Emperor and Liberty; but Charles heeded them not. Nevertheless Gambacorti, to save himself, thought fit to give Charles the lordship of the city; but the people, angered at this, demanded their liberty, so that the magistrates, fearing for peace, reconciled the two factions, who then together demanded of Charles his new lordship. And he gave it them with as good a grace as he could, for his men were few. Then again he heard from Lucca. There, too, they demanded liberty, and especially from the dominion of Pisa, and, it is said, the Lucchesi in France gave him 20,000 florins for this. But Pisa heard of it. When Charles sent his troops to occupy Lucca, the Raspanti saw their opportunity and rose. They put themselves at the head of the people, who slew one hundred and fifty of Charles's Germans, and held Charles himself a prisoner in the Duomo, where he lodged since the Palazzo Comunale had been fired. Montescudaio, however, secretly joined Charles with his men; he burnt the houses of the Gambacorti and dispersed the mob. Apparently Lucca was free. But Charles had reckoned without the Pisan garrison in the subject city. They fired their beacons, and Pisa saw the blaze. It was enough, their dominion was in danger; there were no longer any factions; Raspanti and Bergolini alike