The younger of two sons named John of John FitzGilbert of Monmouth. According to recent scholarship, this younger brother was hanged for murder. He may have married a daughter of David Earl of Huntingdon. He also died without issue c 1281. The lands and honour of Monmouth reverted to the crown. Named as heirs otherwise were an aunt and a female cousin (Albreda de Botterel and Joan de Neville).

[David Williams, who wrote a history of Monmouth in 1796, noted that "yet there was a John of Monmouth slain in 4th of Edw III with Sir Hen. Twysliton, on St. Luke's Day. Wm. Mortimer was taken. Leland, Col. I. 687." -- is this relevant?]

John of Monmouth (died 1257) [This entry is about his older half-brother] From Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/John_of_Monmouth_(died_1257)

CURATOR NOTES: Apparently John FitzGilbert of Monmouth had two sons named John, one from each marriage. The elder son John of Monmouth (born of his first wife Cecily de Waleran, probably in the 1190s) was custos of the castle of Penrhos and died in 1257 without issue, leaving Monmouth Castle to Prince Edward.

That elder son John is to be distinguished from his younger half-brother John, born to his father's second wife Agnes de Muscegros around 1225. According to an article by Crowley et al., citing Rotulae Parliamentariae i, 185, the elder John left property to his younger half-brother, but the younger John de Monmouth was hanged for murder. Another report was that he became heavily in debt and surrendered his estates, including the lordship of Monmouth, to the crown in 1256. [from http://en.wikipedia.org/wiki/John_of_Monmouth] He died in 1274, or according to Crowley et al, in 1281 However, this conflicts with the account that his brother had left Monmouth Castle to Prince Edward, so it seems that historians may have often confused the two Johns.

Crowley et al. only discuss the dispensation of the parish of Steeple Langford, but through their discussion it appears that the older brother John apparently left his estates to the younger brother (and perhaps to a number of siblings), and that it was not that he left his estates to the crown but that they were seized by the crown and later returned to the family after petitions from various heirs:

"Osulf held Steeple Langford in 1066; Waleran the huntsman held it as 10 hides in 1086. (fn. 57) The manor of STEEPLE LANGFORD descended to Waleran's heirs, possibly in the direct male line and presumably to William son of Waleran, Waleran (fl. 1131) son of William, Walter Waleran (fl. 1166), and Walter Waleran (d. 1200–1). (fn. 58) The second Walter's heirs were his daughters Cecily, Aubrey, and Isabel; Cecily married John of Monmouth, Aubrey Sir John de Ingham (d. c. 1203) and William de Botreaux (d. c. 1209), and Isabel William de Neville. The husbands held the manor jointly in the early 13 th century, (fn. 59) and John of Monmouth, Aubrey de Botreaux, and Isabel's daughter Joan de Neville (d. c. 1263), who married Jordan de St. Martin (d. c. 1223), held it jointly and in chief in 1242–3. (fn. 60) John of Monmouth (d. c. 1248) and Cecily were succeeded by their son John (d. 1257) who settled the manor or his right in it on his brother, evidently half-brother, John of Monmouth. (fn. 61) The brother was hanged for murder in 1281. (fn. 62) Aubrey (d. c. 1270) had a son Walter de Ingham (d. c. 1253) and a grandson and heir Oliver de Ingham (d. 1282), (fn. 63) and Joan had a son William de St. Martin (d. c. 1291). (fn. 64) Oliver and William claimed the manor but Edward I took it as an escheat, asserting that John of Monmouth (d. 1281) held it in chief, (fn. 65) and in 1299 settled it as dower on Queen Margaret. (fn. 66) In 1304 Oliver's son Sir John de Ingham and William's son Reynold de St. Martin petitioned parliament for the manor, acknowledging the king's right to have held, it for a year and a day but claiming it as their escheat on the grounds that John of Monmouth (d. 1281) held it not in chief but of the heirs of his brother John as coparceners. (fn. 67) In 1306 they recovered seisin, (fn. 68) and by 1310 had partitioned the manor, (fn. 69) which thereafter descended in moieties until 1588."

Footnotes/references for this last quote:

• 57 V.C.H. Wilts. ii, p. 151.
• 58 V.C.H. Hants, iv. 351, 521; I. J. Sanders, Eng. Baronies, 96, where Walter (d. 1200–1) is said to be the son of Waleran (fl. 1131); Hoare, Mod. Wilts. Cawden, 73; Red Bk. Exch. (Rolls Ser.), i. 241.
• 59 Red Bk. Exch. (Rolls Ser.), i. 153–4; ii. 483; V.C.H. Hants, iv. 521; Sanders, Eng. Baronies, 96–7, which this acct. of Walter Waleran's successors corrects at several points.
• 60 Cal. Inq. p.m. i, p. 166; Ex. e Rot. Fin. i. 100; Bk. of Fees, ii. 716; P.R.O., CP 40/355, rot. 89 and d.
• 61 Sanders, Eng. Baronies, 96; Cal. Inq. p.m. i, p. 101; Close R. 1256–9, 63; P.R.O., CP 40/355, rot. 89 and d.
• 62 Rot. Parl. i. 185.
• 63 Cal. Inq. p.m. i, p. 232; Complete Peerage, vii. 65 n.
• 64 Cal. Inq. p.m. i, p. 166; Cal. Fine R. 1272–1307, 295; P.R.O., CP 40/355, rot. 89 and d.
• 65 Cal. Fine R. 1272–1307, 185; P.R.O., CP 40/60, rot. 3; CP 40/355, rot. 89 and d.
• 66 Cal. Pat. 1292–1301, 452.
• 67 Rot. Parl. i. 168, 184–7.
• 68 Cal. Pat. 1301–7, 505.

References

• http://en.wikipedia.org/wiki/John_of_Monmouth
• http://en.wikipedia.org/wiki/John_of_Monmouth_(died_1257)
• Kissack, Keith (1974). Mediaeval Monmouth. The Monmouth Historical and Educational Trust. pp. 24–27.
• John Duncumb et al., Collections Towards the History and Antiquities of the County of Hereford: pt. 1., E.G. Wright, 1812, pp.368-369
• D. A. Crowley (editor), A. P. Baggs, Jane Freeman and Janet H. Stevenson (1995). "Parishes: Steeple Langford". A History of the County of Wiltshire: Volume 15: Amesbury hundred, Branch and Dole hundred. Institute of Historical Research. Retrieved 12 May 2012. http://www.british-history.ac.uk/report.aspx?compid=115439

John Duncumb et al, Collections Towards the History and Antiquities of the County of Hereford, Volume 2, 1812. p. 368: Notes: Under "Parish of Hope Mansell" (which was an appendage to the honour of Monmouth)

William FitzBaderon [whose ancestor was Lord of Monmouth and of this manor at the time of the Domesday Survey, holding Hope, Leuric and Edeulf] was living in 1119, and was succeeded by his son Baderon FitzWilliam, who sometime around 1128 married Rohesia, daughter of Gilbert Strongbow, Earl of Pembroke. Their son Gilbert (FitzBaderon]\) who died c 1190, was succeeded by his son John (Sheriff of Herefordshire in 1231) who died in 1247. John, by his first wife Cecily (daughter of William de Walerand) had four daughters; by his second wife Agnes de Muscegros, had sons:

1. William (who died while his father was living),

2. John (who succeeded his father, had livery of his lands in 1248 but in 1256 being "heavily in debt to the crown" he conveyed to Prince Edward his town and lordship of Monmouth with the consent of the King, who confirmed it by patent in 1257. [CURATOR'S NOTE: the following in italics has been disproved] John married Maud, daughter of David Lord of Huntingdon, by whom he had two daughters, Joan and Albreda; he died in 1274, leaving a second wife Katherine, "who had her dower assigned the next year out of his lands in Herefordshire." [CURATOR's NOTE: This archaic account may be collapsing the two half-brothers both named John, one of whom died c 1257 and the other who died by hanging in 1281]

3. Richard known as de Wyesham

4. Walter.

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David Williams, The History of Monmouthshire (1796) https://books.google.com/books?id=veg-AQAAMAAJ

regarding town of Monmouth:

p 77 Two hospitals were founded by John de Monmouth in about 1240.

p. 78 The castle is supposed to have been built by John of Monmouth, who was deprived of his estate by Henry III for his adherence to the rebellious barons, and it passed into the House of Lancaster.

p. 88 [re the first John of Monmouth:] In the 17th of K. John,, this John was made Governor of St. Briavels Bremble (Sussex) and Grosmont in Monmouthshire; in 18th of K. John, he had livery of the castles of Grosmont, Skinefrith and Lanteliock. He founded Gracedieu. He gave to the monks of St . Florence at Salmure the hospital of St. John at Monmouth, with divers lands and rents thereto belonging. In the 17th of Henry III was defeated by Richard Earl Marshall. In the 25th of Henry III, on the death of Gilbert Marshall, Earl Pembroke, he was made Governor of Striguil, but in 31 Henry III, being dead, his son, and heir had livery of his lands.

son John of Monmouth: This John, in 35th of Henry III, was constituted governor of Penros in Wales, and shortly after, made warden of New Forrest in Hants. But having no issue male, in consideration of certain lands which Prince Edward granted him for life, he gave to the said prince and his heirs forever, his castle and honour of Monmouth, as also his other lands and tenements, which grant was confirmed by the King 13th Sept 40th Henry III; and departing this life in 41st Henry III, left Albreda and Joan, his daughters, heirs, and being then of full age.

heirs: Albreda de Boteray and Joan de Neville.

yet there was a John of Monmouth slain in 4th of Edw III with Sir Hen. Twysliton, on St. Luke's Day. Wm. Mortimer was taken. Leland, Col. I. 687.