The Florentines felt all the shame of the treaty, but they made a show of rejoicing after the war was over. There was indeed every reason to wish for quiet in that quarter, for there was no lack of troubles of all kinds. It was not long since a compromise had with great difficulty been arrived at about Città di Castello. The Pope had tried both arms and negotiations to regain possession of the town, and neither had succeeded. Niccolò Vitelli held out till 1484, by the Florentine assistance. Florence had indeed no intention of offending the Pope for his sake, and thereby damaging the far more important cause of Ferrara, and was inclined to let Sixtus have his will in the matter. But he wanted to give the town and neighbouring places as a fief to his nephew, and at the same time to enlarge the latter’s possessions in the direction of Rimini and Cesena by a treaty with the Malatestas, neither of which things suited the Florentines.[251] Amid this uncertainty Vitelli resolved to imitate Lorenzo’s example. He went to Rome, came to terms with the Pope, recognised the latter’s supremacy, agreed with his rival Lorenzo Giustini, and accepted the office of a governor of the Maritima and Campagna. Peace was restored in the valley of the Upper Tiber, and Città di Castello was preserved to the Church; while the Vitelli, who continued to govern through various changes of form and destiny, maintained till their extinction their active relations with Florence and the Medici. On June 14, 1483, an agreement was made with Siena for the restoration of the places which Florence had been compelled to yield to her in the treaty of peace of 1480.[252] But another revolution in Siena, where the party raised to power by the Duke of Calabria’s influence had been unable to maintain themselves, had been required to produce this restoration and decide the Sienese to form an alliance with Florence, to secure herself against the exiles supposed to be favoured by Rome and Naples. The Florentine opinion of the neighbouring state was still the same as that expressed nearly two hundred years before by the poet of the ‘Divine Comedy,’[253] as may be seen by a letter from the Signoria to Lorenzo during his stay at Cremona. The treaty with the Sienese, say they, is a long process, and no real confidence can be placed in them and their doings, because of the changeableness of their nature.[254]