128 The Norman Conquest and that his predecessors in England had never enterec into any such relation with former popes. William's specific policy with respect to the church ir England is stated in the well-known rules that have generally been ascribed to him. He would allow no one in his kingdom to acknowledge a pope as true pope excepl upon his authority;1 no letters were to be received frorr the pope that he had not first seen; the national synod o] the church was neither to enact nor prohibit anything which was not in accord with his will; no bishop coulc excommunicate or bring to trial any of the king's barons or ministers except at his command. Whether these rules were formulated by William or the chronicler whc recorded them,2 there is reason to believe that they rep- resent William's purpose and practice, not only in Eng- land, but earlier in Normandy. Their enforcement meant royal oversight of the relations between England and Rome and a strict royal control of internal church polity. This clear-cut, masterful attitude of the Conqueroi undoubtedly had an influence upon the relations of church and state in England at many later times, and worked itself into the English tradition that shared in producing the important anti-papal legislation of the fourteenth century.3 Of the changes necessarily wrought in the English church by the Conquest, enough can be seen in the early post-Conquest period to make clear the general character 1 In a time of frequent anti-popes, and when the attitude of a country towards claimants of the papal office might have political bearings, this was a necessary principle for a sovereign who would really rule. 2 This was Eadmer, who was writing in Henry I. 's reign. He was one of the most reliable and intelligent chroniclers of the twelfth century. For this passage, see Stubbs, Select Charters, p. 96. 3 Why Gregory VII., who must have been offended at what he probably considered William's ingratitude and bad faith, never used coercive meas- ures in order to gain from the Conquest the advantages which he had looked for, is an interesting question. The answer probably lies in the greater importance the contest with the Emperor must have had in the eyes of a pope of that period. And the practical difficulty of dealing with so distant a country as England, filled with the traditions of an independ- ent church and having such a self-willed sovereign as the Conqueror, must have been great.