Nielsen Hayden genealogy
Descendants of John de Courtenay
- 1274Father: Robert de Courtenay (Abt 1183 of Okehampton, Devon, England - 26 Jul 1242 Iwerne, Dorset, England)
Mother: Mary de Revières ( - Aft 12 Nov 1242)
John de Courtenay (of Okehampton, Devon, England - 3 May 1274 bur.Ford Abbey, Dorset, England)
Isabel de Vere ( - Bef 7 Jan 1291 bur.Cowick Priory, Exeter, Devon, England)(m. Aft 6 Oct 1240)
   └─ Hugh de Courtenay (25 Mar 1251 of Okehampton, Devon, England - 28 Feb 1292 Colecombe, Devon, England)
    Eleanor le Despenser ( - 30 Sep 1328 London, England)
       ├─ Egeline de Courtenay ( - 10 Oct 1335)
       │ Robert de Scales (1279 of Newsells in Barkway, Hertfordshire, England - 20 Mar 1325)
       │    └─ Robert de Scales (Abt 1312 of Newsells in Barkway, Hertfordshire, England - 13 Aug 1369) =>
       │     + Katherine de Ufford (m. Bef 2 Apr 1335)
       ├─ Isabel de Courtenay ( - Aft 12 Feb 1333)
       │ John de St. John (Between 1272 and 1274 of Basing, Hampshire, England - Bef 4 Apr 1329)
       │    │ + John de Beauchamp (Abt 1306 of Hatch Beauchamp, Taunton, Somerset, England - 19 May 1343)
       │    └─ Hugh de St. John (26 May 1310 of Basing, Hampshire, England - Bef 25 Oct 1335) =>
       │     + Mirabel Wake ( - Aft Jun 1355)(m. Bef 16 Sep 1329)
       └─ Hugh de Courtenay (14 Sep 1276 - 23 Dec 1340 Tiverton, Devon, England)
        Agnes de St. John ( - 11 Jun 1345 bur.Cowick Priory, Exeter, Devon, England)(m. 1292)
           ├─ Thomas Courtenay (of Woodhuish, Devon, England - 9 Jun 1362) =>
           │ + Muriel de Moels (Abt 1322 Dorset, England - 12 Aug 1369)(m. Bef 27 Aug 1337)
           └─ Hugh de Courtenay (12 Jul 1303 of Okehampton, Devon, England -
            2 May 1377 Tiverton, Devon, England) =>
            2 May 1377 Tiverton, Devon, England) =>
            + Margaret de Bohun (3 Apr 1311 - 16 Dec 1391 bur.Exeter Cathedral, Exeter, Devon, England)
            (m. 11 Aug 1325)
            (m. 11 Aug 1325)