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Joan de Monmouth

Birthdate: (43)
Birthplace: Monmouth, Wales
Death: circa 1247 (39-47)
Raby Keverstone Castle, Staindrop, Durham, England
Immediate Family:

Daughter of John fitz Gilbert de Monmouth, Lord of Monmouth and Cecily de Monmouth
Wife of Geoffrey FitzRobert de Neville, Baron of Raby
Mother of Robert de Neville, Lord of Raby; Geoffrey de Neville, II and Hugh Neville
Sister of John (the Elder Brother) de Monmouth, Lord of Monmouth; Dau 2 de Monmouth and William de Monmouth
Half sister of Richard de Wyesham, Lord of Wyesham; John II de Monmouth Lord of Monmouth; Roaps or Robert de Monmouth and James de Monmouth

Managed by: Kim Susan Legge
Last Updated:

About Joan de Monmouth

  • Joan of Monmouth
  • F, #13936, d. after 1247
  • Father John of Monmouth
  • Joan of Monmouth married Geoffrey de Neville, Sheriff of Northumberland, son of Robert 'the Saxon' FitzMaldred, Lord Raby and Isabel Neville. Joan of Monmouth died after 1247.
  • Family Geoffrey de Neville, Sheriff of Northumberland b. c 1200, d. a 1258
  • Children
    • Sir Geoffrey de Neville, Governor of Scarborough, Chief Justice of the Forest beyond Trent+ d. c 16 Mar 1285
    • Agnes de Neville+ d. b 20 Jul 1293
    • Sir Robert de Neville, Sheriff of Northumberland+ b. c 1217, d. c 20 Aug 1282
  • From:


  • Joan de Monmouth1
  • F, #19610, b. circa 1201, d. after November 1247
  • Last Edited=21 Aug 2005
  • Joan de Monmouth was born circa 1201 at Raby, County Durham, England.2 She was the daughter of John de Monmouth.1 She married Geoffrey (VII) de Neville, son of Robert fitz Maldred, Lord of Raby and Isabel de Neville, circa 1222 in a Raby, Co. Durham, England marriage.2 She died after November 1247 at Raby, County Durham, England.3,2
  • Children of Joan de Monmouth and Geoffrey (VII) de Neville
    • Geoffrey (VIII) de Neville+1 d. b 26 Mar 1285
    • Robert (I) de Neville, Lord of Raby+4 b. c 1223, d. b 20 Aug 1282
    • John de Neville4 b. b 1242
  • Citations
  • [S8] BP1999 volume 1, page 13. See link for full details for this source. Hereinafter cited as. [S8]
  • [S125] Richard Glanville-Brown, online <e-mail address>, Richard Glanville-Brown (RR 2, Milton, Ontario, Canada), downloaded 17 August 2005.
  • [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume IX, page 493. Hereinafter cited as The Complete Peerage.
  • [S8] BP1999. [S8]
  • From:


  • Born: ABT 1188
  • Died: 2 Feb 1237, Aber
  • Notes: Others suggest her mother was Clemence, the wife of Henry Pinel.
  • Father: JOHN I "Lackland" PLANTAGENET (King of England)
  • Mother: Agatha De FERRERS
  • Married 1: Llywelyn "the Great" Ap IOWERTH (Prince of Wales) (b. 1173 - d. 11 Apr 1240) 18 Jun 1205
  • Children:
    • 1. Dafydd Ap LLYWELYN (Prince of Gwynedd) (m. Isabella De Braose)
    • 2. Ellen Verch LLYWELYN
    • 3. Angharad Verch LLYWELYN
    • 4. Margaret Verch LLYWELYN (m.1 John De Braose - m.2 Walter Clifford)
  • Married 2: Geoffrey De NEVILLE AFT 1208
    • 5. John De NEVILLE
    • 6. Geoffrey De NEVILLE (Sir)
    • 7. Agnes De NEVILLE


  • GEOFFREY FitzRobert, son of ROBERT FitzMaldred & his wife Isabel de Neville (-1242). He assumed the name Neville, after his mother's family. The Red Book of the Exchequer records "Galfridus de Neville" holding the hides of land "in Greftone" in Wiltshire in [1210/12][788].
  • m JOAN, daughter of --- (-after Nov 1247).
  • Geoffrey & his wife had four children:
    • 1. ROBERT de Neville (-1282). m firstly ---. m secondly (1273) as her second husband, IDA, widow of ROGER Bertram of Milford, daughter of ---. Robert & his first wife had two children:
      • a) .... etc.
    • 2. AGNES (-[16 Jun 1285/20 Jul 1293]). A charter dated 8 Nov 1251 records an agreement between “Johannem de Eyncurt et Agnetem uxorem eius” and “Henricum filium Willelmi de Percy” (authorised by “Henricus filius Ricardi de Percy”) relating to land “in Herghum”[799]. m firstly as his second wife, RICHARD de Percy of Topcliffe, Yorkshire, son of JOSCELIN de Louvain & his wife Agnes de Percy (-1244). m secondly (before 12 Nov 1251) as his second wife, JOHN [II] Deincourt, son of OLIVER [II] de Aincourt & his wife Nicole --- (-1257).
    • 3. GEOFFREY (-before 1285). m MARGARET, daughter of JOHN de Lungvillers & his wife --- (-1319). Geoffrey & his wife had five children:
      • a) .... etc.
    • 4. JOHN . Clerk.
  • From:


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Joan de Monmouth's Timeline

Great Hallingby, Essex, England
Monmouth, Wales
Age 19
Raby With Keverstone, Staindrop, Durham, England
Age 21
Hornby, Yorkshire, England
Age 43
Raby Keverstone Castle, Staindrop, Durham, England
May 16, 1931
Age 43
May 16, 1931
Age 43
August 24, 1931
Age 43
August 24, 1931
Age 43