Now that the Papacy had been rescued from the Roman faction, the next step was to free it from the Egyptian bondage of subjection to the Empire. Hildebrand was ready to strike whenever a fair opportunity should come. It soon came. The Emperor died, leaving his son Henry IV, a little boy, his successor on the German throne and heir to the Empire. A long minority seemed to reveal the hand of Providence. Hildebrand acted. It had long been obvious that one cause of papal subjection to Roman faction and Imperial tyrant had been the uncertainty of the electoral body. Emperors, Roman nobles, and Roman rabble, all had certain historic electoral rights. Hildebrand resolved to dispossess them all. A synod was held, which declared that the election of the Pope lay in the hands of the cardinals (1059). Some right of approval was left to the Roman people, some right of sanction to the Emperor, but the right of original election was vested in the cardinals, and this gradually developed into an absolute and exclusive right of election. This act was an act of rebellion towards the Empire, a declaration of independence. Hildebrand said that he strove to make the Church "free, pure, and catholic." This action made it free. It was not to be expected that the Empire would acquiesce tamely in this rebellion. Imperialists and Romans made common cause against the clerical rebels. But the height of the conflict was not reached till Hildebrand himself was elevated to the Papacy (1073), becoming Gregory VII. He immediately took the offensive. Burning with conviction himself, he appealed to the general enthusiasm both in the Church and throughout the Empire for the cause of God; he ruthlessly denounced simony and proclaimed principles of papal sovereignty absolute and universal. "The Roman Church was founded by God alone; she never has erred and never will err, and no man is a Catholic who is not at peace with her. The Roman bishop alone is universal. He may depose bishops and reinstate them, he may transfer them from one see to another, he may depose emperors, and may absolve the subjects of the unjust from their allegiance. No synod without his consent is general; no episcopal chapter, no book, canonical without his authority. No man may sit in judgment on his decrees, but he may judge the decrees of all." Here certainly was a second Julius Caesar in ambition. Gregory claimed feudal supremacy over Bohemia, Russia, Hungary, Spain, Corsica, Sardinia, Dalmatia, Croatia, Poland, Scandinavia, and England. Such claims were vague and shadowy; but the claims to interfere between the German king and the German episcopate and clergy were definite and direct. The Papacy declared its own supremacy, and the Imperial duty of obedience.