Sheriff of Corwall 1471 and killed when attacking St Michael’s Mount after it was taken by the Earl of Oxford for Hen V1. Bur in the Chapel on the mount.

The Arundells are amongst the few Cornish families of Norman origin, and there are still fewer of French extraction who have for so long a period as at least five or six centuries been, like them traceable in that county. The Arundell Family
A.L. Rowse described the Arundells as 'the richest and best-beloved of all Cornish families' (Tudor Cornwall, p. 16.) in Tudor times. From small beginnings in the early 1200s, when their only possession was the manor of Treloy in St Columb Major parish, they reached the height of their wealth and influence in the late sixteenth century with twenty-eight manors in Cornwall as well as manors and other properties in Devon, Dorset, Gloucestershire, Somerset and Wiltshire, the greatest extent of their land-holdings.
The earliest record of an Arundell in Cornwall is in 1131 in the Pipe Roll but no connection can be demonstrated between that individual and the later Arundells of Lanherne. An Arundell occurs in Dorset and Somerset in Domesday Book and there are also instances of the name in Devon in the Middle Ages but again there is no evidence to link these people with the Cornish Arundells. The Devonshire manors of Morchard Arundell and Uton Arundell received their affixes from their ownership by the Cornish family.
The Arundells extended their land-holdings and rose to prominence through a series of good marriages to wealthy heiresses. Some of their property was purchased but the majority was acquired in this way from the mid-thirteenth century to the late 1500s. Between these dates the Arundells were active locally and nationally. Ralph Arundell was sheriff of Cornwall in 1259-60 and John Arundell became Bishop of Exeter in 1502. Sir John Arundell fought for Henry VI at the Battle of Tewkesbury in 1471 and his grandson was one of those appointed to put down the Cornish rebellion of 1497-8. Two Arundells served as stewards of the Duchy of Cornwall in the sixteenth century and Arundells led Royalist troops during the Civil War. Branches of the family were established at Trerice and Tolverne by younger sons in the fourteenth and fifteenth centuries. The influence of the Arundells declined after the Reformation, when their staunch adherence to Catholicism made them ineligible for public office, but they remained prominent in Cornwall as long as they retained their lands there.
The direct male line of the family died out in 1701, the estates being inherited by an heiress
The name is apparently of Norman origin, and the antiquary John Leleand, who toured Cornwall in 1538, derived it from the Arundales of Cuille, between Rennes and Chateau-Goutier in Brittany. Certainly the family have always borne swallows on their escutcheon

There is another Cornish traditionary story of Sir John Arundell, who dwelt on the north coast of Cornwall, at a place called Efford, on the coast near Stratton. He was a very honourable, excellent man, and a just magistrate. One day a wild shepherd, who professed to possess supernatural powers and to be a seer, was brought before him for having in some way broken the law; this man also possessed a dangerous influence over the people, and Sir John committed him to prison for a short time. On his release, at the expiration of his term, he repeatedly waylaid the knight, and looking threateningly at him, muttered,-
"Thou shalt die by human hand
Upon the yellow sand."
Arundell was not above the superstitions of the age. He also believed that the seer might fulfil his own prophecy by murdering him. He therefore removed from Efford, which was close to the sands, and went to Trerice, where he lived for some years, and saw nothing of his old enemy.
But Richard de Vere, Earl of Oxford, seized St. Michael's Mount. Sir John Arundell was at the time sheriff of Cornwall, and he at once gathered together his own retainers and a large body of volunteers, and attacked the Lancastrians. The retainers of Arundell were encamped on the sands by Alarazion. The followers of the Earl of Oxford one day made a sally from the castle, rushed on the sheriff's men, and in the fight Arundell received his death-wound. " Although he had left Efford to counteract the will of fate, the prophecy was fulfilled; and in his dying moments, it is said, his old enemy appeared, singing joyously:-
'When upon the yellow sand,
Thou shalt die by human hand.'"