| Sir John Arundell IV | |
| Birth Date: | 1340 |
| Birth Place: | Treleigh Manor, St Ervan, Cornwall, England |
| Death Date: | 5 November 1376 |
| Death Place: | Ireland |
| Noble Family: | Arundell of Lanherne |
| Spouse: | Joan Luscote |
| Father: | John Arundell III |
Sir John Arundell IV, born at Treleigh Manor, in the parish of St Ervan, Cornwall in about 1340 was an English knight and as son of John Arundell (III) was heir to a family that held large amounts of land in Devon and Cornwall. He died on 5 November 1376, drowned off the coast of Ireland, in a fleet going to Brittany.[1]
Sir John Arundell IV married Joan Luscote, the daughter of Sir William Luscote, in about 1370.
His wife survived him and married, as her second husband, widower Sir William Lambourne.[2] John and Joan's son and heir, Sir John Arundell (V), married Annora Lambourne, his step-father's daughter by a previous wife.
. The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms, The New Extinct Peerage. . 1972 . London, UK: Heraldry Today . 8 . L. G. Pine.