'Come now, I beseech you, O most holy and blessed Fathers and Princes, Peter and Paul, that all the world may understand and know that if ye are able to bind and to loose in heaven, ye are likewise able on earth, according to the merits of each man, to give and to take away empires, kingdoms, princedoms, marquisates, duchies, countships, and the possessions of all men. For if ye judge spiritual things, what must we believe to be your power over worldly things? and if ye judge the angels who rule over all proud princes, what can ye not do to their slaves?' [Sidenote: Results of the struggle.] Doctrines such as these do indeed strike equally at all temporal governments, nor were the Innocents and Bonifaces of later days slow to apply them so. On the Empire, however, the blow fell first and heaviest. As when Alaric entered Rome, the spell of ages was broken, Christendom saw her greatest and most venerable institution dishonoured and helpless; allegiance was no longer undivided, for who could presume to fix in each case the limits of the civil and ecclesiastical jurisdictions? The potentates of Europe beheld in the Papacy a force which, if dangerous to themselves, could be made to repel the pretensions and baffle the designs of the strongest and haughtiest among them. Italy learned how to meet the Teutonic conqueror by gaining the papal sanction for the leagues of her cities. The German princes, anxious to narrow the prerogative of their head, were the natural allies of his enemy, whose spiritual thunders, more terrible than their own lances, could enable them to depose an aspiring monarch, or extort from him any concessions they desired. Their altered tone is marked by the promise they required from Rudolf of Swabia, whom they set up as a rival to Henry, that he would not endeavour to make the throne hereditary. [Sidenote: Concordat of Worms, A.D. 1122.]