The origins of the Arundell family of Trerice are obscure and no reliable descent has been traced from the family of Arundell of Lanherne, Cornwall, 6 miles to the north-east of Trerice, called by Leland "The Great Arundells". These two main Arundell families are easily confused as both called most of the male heirs by the Christian name "John". The earliest recorded English Arundell is the 11th century Norman magnate "Roger Arundel", feudal baron of Poorstock in Dorset, recorded in the Domesday Book of 1086, whose family died out in the male line in 1165. No such place as "Arundel" appears to exist in Normandy, and no territorial prefix "de" is shown before Roger's surname in Domesday. The early armorials of the Arundells of Trerice were "Gules, a lion rampant or", but the family later used the same canting arms as Arundell of Lanherne: "Sable, six swallows 3, 2 and 1 argent" (derived from the French "hirondelle", a swallow). The Arundells of Trerice are said to have had their English origins during the reign of King Henry III (1216–1272) at the manor of ""Caryhayes, Carshayes, Kierhaies or Kenelhelvas"" in Cornwall, or at Allerford in Somerset. However the Lysons brothers (1814) stated: