It would be a fruitless task to endeavour to give details of the genealogy of the earlier Arundells, for it is enveloped in considerable uncertainty; and even so patient and skilled an investigator as Colonel J. L. Vivian, in his 'Annotated Heralds' Visitations of Cornwall,' has discovered such serious discrepancies in the various statements concerning it, that he gives up some portions of it in despair. We have seen that Roger was the Christian name of the Arundell at the time of the Conquest; in 1216, his grandson, William, forfeited his lands by rebellion (a tendency to which offence was, as we shall see, rather characteristic of the family), but the estates were restored to the rebellious William's nephew, Humphry. By the latter's marriage with Joan de Umfraville, he had a son, Sir Renfry de Arundell of Treffry, and by Renfry's marriage with Alice de Lanherne, in the time of Henry III., the name of Arundell became for many a long year associated with that of Lanherne. One of their sons, Sir Ralph, was, as we have seen, Sheriff of Cornwall in the same reign (1260), and from his marriage with a lady who bore the euphonious name of Eva de Rupe, or de la Roche, of Tremodret,[23] in Duloe parish, the main stem of the family seems to have shot forth its boughs and branches. Their younger son, Ralph, was that rector of St. Columb Major, who, as we have seen, resigned his living in 1353, or, according to some other authorities, in 1309. But their eldest son, Sir John of Trembleth, in the time of Edward I., married Joan le Soor, of Tolverne, and thus appears to have originated the connection which so long subsisted between the two branches of the family. Their children, Margaret and Sir John, married, the former with a Beville, and the latter with a Carminow; and now, for the first time, the name of Trerice also appears in the family tree, for this Sir John is said to have had a cousin, Ralph Arundell of that place. I cannot trace his descent, and can only suggest that he _may_ have been a brother instead of a cousin. If I have correctly interpreted the pedigree, the last-named Sir John was a man of mark, and of him we have the following accounts:--