[Sidenote: It is enforced.] In these circumstances Gregory VII. took his course. The synod held at Rome in the first year of his pontificate denounced the marriage of the clergy, enforcing its decree by the doctrine that the efficacy of the sacraments altogether depended on their being administered by hands sinless in that respect, and made all communicants partners in the pastoral crime. [Sidenote: The pope seeks the friendship of the Normans.] With a provident foresight of the coming opposition, he carried out the policy he had taught his predecessors of conciliating the Normans in the south of Italy, though he did not hesitate to resist them, by the aid of the Countess Matilda, when they dared to touch the possessions of the Church. It was for the sake of this that the Norman invasion of England under William the Conqueror had already been approved of, a consecrated standard and a ring containing a hair from the head of St. Peter sent him, and permission given for the replacement of Saxon bishops and other dignitaries by Normans. It was not forgotten how great had been the gains to the papacy, three centuries before, by changing the dynasty of the Franks; and thus the policy of an Italian town gave a permanent impress to the history of England. Hildebrand foresaw that the sword of the Italian-Norman would be wanted to carry out his projected ends. He did not hesitate to authorize the overthrow of a Saxon dynasty by the French-Norman, that he might be more sure of the fidelity of that sword. Without the countenance of the pope, the Norman could never have consolidated his power, nor even held his ground in England.