the Colonna struck at Rome. They penetrated first into the southern part of the town, and then into the Leonine city, where they sacked the papal palace, and the dwellings of several Cardinals. Clement took refuge in the Castle of St Angelo, where he was shortly forced to conclude a truce of four months with the Emperor, promising to withdraw his troops from Lombardy and his galleys from before Genoa, and giving hostages for his good faith. The Emperor disavowed the actions of the allies but profited by the result, which was indeed only partial, since Giovanni de' Medici, with the best of the papal troops, continued to fight for the League, in the name of the King of France. An amnesty promised to the Colonna was disregarded, and in full Consistory their lands were declared to be confiscated, and a force was sent to execute this sentence.
Inert as ever, after the capture of Cremona, the Duke of Urbino allowed three weeks to pass before, strengthened by the arrival of 4000 French, he moved upon Milan, not to assault but to blockade. These delays were invaluable to Charles. They allowed him to win the adhesion of Alfonso, Duke of Ferrara, which was facilitated by the papal hostility. They allowed him to send troops from Spain to Naples (December), and to collect German levies, who arrived in Italy under Frundsberg in November. Their presence in the duchy of Mantua forced the Duke of Urbino to abandon the siege of Milan. He divided his army, leaving a part at Vauri, on the Adda, and advanced with the remainder against Frundsberg, whom he found at Borgoforte near the Po. In the skirmish which followed Giovanni de' Medici was wounded, and he died shortly afterwards at Mantua. The Duke of Urbino gave up all further attempt to prevent the junction of the imperialists, and returned to Mantua. The want of energy displayed by the Duke of Urbino throughout this campaign is not wholly to be attributed to his character. He had a well-grounded mistrust of the troops of which his army was composed, and doubted their competence to face the Spaniards. Moreover the Venetians were uncertain as to the Pope's real intentions and were reluctant to push matters to an extreme. The success of Charles however was principally due to this policy of inaction. The Duke of Bourbon now extorted by the extremest measures the money necessary to enable him to move, requiring, for instance, 20, 000 ducats of Morone as the price of his life and pardon, and at length the forces met at Fiorenzuola in the territory of Piacenza (February, 1527). The united army then moved towards the Papal States, watched at a distance by the Duke of Urbino, while garrisons were sent to save Bologna and Piacenza. The Pope, in extreme alarm, threatened by Bourbon from the north and Lannoy with the Colonna from the south, implored Francis to act, and showed himself willing to make whatever terms he could with the Emperor. Then on hearing of a small success of his troops in the south at Frosinone (January, 1527), he determined to pursue the war.
