Sir Hugh de Courtenay of Okehampton was born 25 March 1249 to John de Courtenay (c1218-1274) and Isabel de Vere (c1222-aft1299) and died 28 February 1290 of unspecified causes. He married Eleanor le Despenser (-1328) .
Children
| Name | Birth | Death | Joined with |
| Eleanor Courtenay (c1263-1301) | 1263 | 1301 | Henry de Grey, 1st Baron Grey of Codnor (c1260-1308) |
| Hugh de Courtenay, 9th Earl of Devon (1276-1340) | 14 September 1276 | 23 December 1340 | Agnes St. John (c1278-1345) |
| Isabel Courtenay (c1283-?) | |||
| Egeline Courtenay (c1287-1335) | |||
Footnotes (including sources)
| ‡ General |