Nevertheless, Bernabo protested himself devout; he fasted, built churches and monasteries. This amiable man had thirty-two children. His brother, joint heir of the principality, Galeazzo II, was of the same stuff, except that in place of piety he substituted an interest in letters; he founded the University of Pavia, and exchanged figs, flowers, and flattery with Petrarch. Galeazzo's son, Gian Galeazzo (1378-1402), rose still higher in the world; he gave 300,000 sequins to the King of France, and in return received the king's daughter in marriage. For a second wife he married his cousin, daughter of his amiable uncle Bernabo, who thought that this marriage would bind his nephew to him by bonds of filial affection. Gian Galeazzo however, by means of a trick, got his father-in-law within his reach, arrested him, accused him of witchcraft, put him in prison and poisoned him, and so became sole lord of Milan. This worthy lord converted his principality into a dukedom and became duke (1395); but as we have followed the family to the end of the century, and long enough to make ourselves acquainted with the habits of tyrants, we must leave them. Poor Italy suffering from these three evils, plagues, _condottieri_, and tyrants, naturally sought for a cure, and, with what seems to us a singular lack of imagination, turned to the old remedies, Emperor and Pope. From time to time Emperors came into Italy, but the Hapsburgs were very different from the Hohenstaufens, and their trips to Rome were mere money-getting excursions. They sold privileges and honours, imposed what taxes they could collect, and sneaked back to Germany. Obviously there was no hope from Emperors. Then rose the cry for the return of the Papacy. Every Italian, however he might hate or despise the Popes, felt proud that the Papacy was an Italian institution, and believed that every Pope, good or bad, should live in Rome and sit on his throne at St. Peter's. Sentiment grew strong, especially among the women; Petrarch thundered, St. Catherine of Siena pleaded. Moreover, the sharper argument was urged with great practical effect, that the Papal State might shake off the papal dominion if the Pontiffs did not look after it themselves. The Popes began to stir uneasily. The cardinals indeed, accustomed to the safe city of Avignon, did not care to go to turbulent Rome, or perhaps, as Petrarch said, they could not bear to leave their Burgundian wines. But finally Gregory XI (1370-78) raised his courage to the sticking point. He returned to Rome in 1377, and the Babylonish Captivity of seventy years ended. CHAPTER XXIII A BIRD'S-EYE VIEW (1350-1450)