
For more detail, See section on the family on the British History website
The origin of this family is very incorrectly stated in the peerages, and with great confusion of erroneous dates; nor have we been able to explain it very satisfactorily by any pedigrees to which we have had access.
Some accounts make the founder of the Lanherne family marry the heiress of Lanherne, who had married the heiress of Pincerna; others make Arundell and Umphraville marry co-heiresses of Pincerna.
None of the heraldic writers, who have treated of this family, seem to have been aware that they came from Yewton Arundell in Devonshire, which continued to be the property of the Arundells of Lanherne, till about the year 1600.
Sir William Pole tells us, that Ralph Arundell was of Yewton as early as the reign of King Stephen. The earliest intimation we have of the Arundells in Cornwall from public records is in 1346, at which time it appears that John Arundell held the manors of Treloy and Trembleth.
One of the Arundells (probably Sir Ralph, who was sheriff of the county in 1260) had long before this married the heiress of Trembleigh or Trembleth in St. Ervan, and this we believe was the origin of their settling in Cornwall. Nearly contemporary was Sir Renfrey Arundell, of whom we have intimation in a pedigree of the Roscarrocks, which Sir Renfrey is said to have married the heiress of Treffry (supposed of Treffry in Linkinhorne), and to have had a son, Lawrence Arundell of Blayboll (probably Blable in St. Issey), whose daughter and heir married Roscarrock.
It appears that in 1346 John de Umphraville held Lanherne in right of Alice his wife, which Alice, no doubt, was the heiress either of Lanherne or Pincerna, for it appears to have been the same family (fn. n1). If the pedigree as given by Sir William Pole be correct (as in most particulars it appears to be, though we suspect that a link or two have been lost), it seems probable that John de Umphraville married the widow of Sir Renfrey, and thus held Lanherne jure uxoris (fn. n2). The name of John does not occur in Sir William Pole's pedigree, but it is certain that in 1346 he possessed Trembleth, the original Cornish seat of the family, and that either he or his heirs soon afterwards became possessed of Lanherne, and removed thither their residence. From the Lanherne stock branched out the Arundells, who were of Tremoderet in Duloe in the fifteenth century; those of Tolverne in Filleigh; those of Trevithick in St. Columb; and those of Wardour-Castle in Wiltshire. The ancestor of the last mentioned family, Sir Thomas Arundell, a younger son of Sir John Arundell of Lanherne, married Margaret, daughter and coheir of Lord Edward, and sister of Queen Catherine Howard. The Lanherne Arundells became extinct, in the year 1701, by the death of Sir John Arundell, who settled his estates on Richard Bealing, Esq., his daughter's son, on condition of his taking the name of Arundell. The sole heiress of this Richard was married, in 1739, to Henry Lord Arundell (fn. n3), of Wardour, in consequence of which match the present Lord Arundell is representative of the elder as well as of one of the younger branches of Arundell of Lanherne. This family married heiresses of Trembleth, Pincerna or Lanherne, Le Sore, Luscot (fn. n4), Lambourn, and Tresithney, and coheiresses of Carminow, Chidiock, and Dinham.