The Papacy, too, when its sufferings became so great, began to excite a sympathy half religious and half political.The kings could not tolerate that one of their number should arrogate to himself the right of Papal gaoler, and concluded (August 18, 1527) the Treaty of Amiens, one of the objects of which was the deliverance of Clement.They thus, at all events, turned to their own account the unpopularity which the deeds of the Imperial troops had excited.At the same time the Emperor became seriously embarrassed, even in Spain, where the prelates and grandees never saw him without making the most urgent remonstrances.
When a general deputation of the clergy and laity, all clothed in mourning, was projected, Charles, fearing that troubles might arise out of it, like those of the insurrection quelled a few years before, forbade the scheme.Not only did he not dare to prolong the maltreatment of the Pope, but he was absolutely compelled, even apart from all considerations of foreign politics, to be reconciled with the Papacy, which he had so grievously wounded.For the temper of the German people, which certainly pointed to a different course, seemed to him, like German affairs generally, to afford no foundation for a policy.It is possible, too, as a Venetian maintains, that the memory of the sack of Rome lay heavy on his conscience, and tended to hasten that expiation which was sealed by the permanent subjection of the Florentines to the Medicean family of which the Pope was a member.The 'nipote' and new Duke, Alessandro Medici, was married to the natural daughter of the Emperor.
In the following years the plan of a Council enabled Charles to keep the Papacy in all essential points under his control, and at one and the same time to protect and to oppress it.The greatest danger of all--secularization--the danger which came from within, from the Popes themselves and their 'nipoti,' was adjourned for centuries by the German Reformation.Just as this alone had made the expedition against Rome (1527) possible and successful, so did it compel the Papacy to become once more the expression of a world-wide spiritual power, to raise itself from the soulless debasement in which it lay, and to place itself at the head of all the enemies of this reformation.The institution thus developed during the latter years of Clement VII, and under Paul III, Paul IV, and their successors, in the face of the defection of half Europe, was a new, regenerated hierarchy, which avoided all the great and dangerous scandals of former times, particularly nepotism, with its attempts at territorial aggrandizement, and which, in alliance with the Catholic princes, and impelled by a newborn spiritual force, found its chief work in the recovery of what had been lost.It only existed and is only intelligible in opposition to the seceders.In this sense it can be said with perfect truth that the moral salvation of the Papacy is due to its mortal enemies.And now its political position, too, though certainly under the permanent tutelage of Spain, became impregnable; almost without effort it inherited, on the extinction of its vassals, the legitimate line of Este and the house of Della Rovere, the duchies of Ferrara and Urbino.