Henry's bold action was not altogether without reason. For some years there had been growing up within the ranks of the advocates of reform a moderate party which, while opposed to simony and clerical marriage, saw in the continued and close union of Church and State an indispensable guarantee of social order. They aimed therefore at conserving the rights of the Crown no less than at recovering those of the Church. This party is found especially among the French clergy. One of its chief spokesmen, the Canonist Ivo, Bishop of Chartres, who had suffered much for his enthusiasm for reform, insists in his correspondence even with the Pope himself, that the prohibition passed upon lay investiture is not among the class of matters which have been settled by a law for ever binding, but among those which have been enjoined or forbidden, as the case might be, for the honour or profit of the Church, and he appropriately bids the papal legate beware lest the Roman clergy should incur the charge of taking tithe of mint and rue while they omit the weightier precepts of the law. Moreover, both he and his friend Hugh of Fleury, in a treatise dealing with the "Royal Power and Priestly Office," maintain that the King has the power, "by the instigation of the Holy Spirit," of nominating bishops, or at least of granting permission for their election; and that, while the royal investiture, however made by word or act, pretends to bestow no spiritual authority, but merely estates or other results of royal munificence, it is for the archbishop to commit to a newly elected prelate the cure of souls. [Sidenote: Settlement in England.] This distinction, repugnant as it was to the extremists, soon found practical application. Lanfranc's successor in the See of Canterbury, Anselm, was, like his predecessor, an Italian, transferred from Normandy to England. He had to contend with the typical King of an unrestrained feudalism in the person of William II. A succession of quarrels ended in Anselm's retirement to Italy. Recalled by Henry I, he took back with him the maxims of the reformers about investiture, and refused to do the required homage to the new King. Henry was not an unreasonable man, and he sent Anselm to bring about some arrangement with the Pope. However, it was not until a rupture was imminent that Pope Pascal was persuaded to acquiesce in an agreement on the lines advocated by Ivo of Chartres and his party. By this Concordat (1107) Henry I agreed to give up his claim to invest with the ring and staff, while Archbishop Anselm allowed that the elected bishop might do homage for his lands to the King. [Sidenote: Pascal II (1099-1118).]