He was the son and heir of Roger Seymour (c. 1367/70-1420) of Hatch Beauchamp by his wife Maud Esturney (or Esturmi), daughter and heiress of Sir
William Esturmy,
Speaker of the House of Commons.[1]
Arms of Macwilliam of Gloucestershire: Party per bend argent and gules, three roses bendwise counter-changed, as later quartered by Queen
Jane Seymour
On 20/30 July 1424 he married Isabel William or Williams (died 14 April 1486), daughter and heiress of Mark William, a
merchant who served as
Mayor of
Bristol,[5] in
Gloucestershire, in some sources given as William Mac William or Williams "of Gloucestershire".[6] After her husband's death in 1464, Isabel took
vows of chastity.[7] By his wife he had two children:
Margaret Seymour (born c. 1428), who married Edmund (Edward) Blount
Death and succession
He died on 20 December 1464 and was succeeded by his grandson
John Seymour (died 1491).
References
^Grandson of Sir William Seymour (Hatch Beauchamp, Somerset, c. 1342 – 25 August 1391, brother of Lettice Seymour (born
Rogaid,
Glamorgan, c. 1343), wife of Gilbert Gamage and mother of Sir William Gamage) and wife Margaret de Brookbury or Brockbury, and great-grandson of Sir Roger St. Maur or Seymour, Kt. (
Even Swindon, Wiltshire, 1314 – bef. 1361) and wife Cicely or Cecily de Beauchamp (c. 1321 – 7 June 1394). Cecily de Beauchamp inherited the
manors of Hatch Beauchamp,
Shepton Beauchamp, Murifield and one third of the manor of
Shepton Mallet, Somerset, the manors of
Boultbery and
Haberton, Devon, of
Dorton,
Buckinghamshire, and of
Little Haw, Suffolk, and was a daughter of Sir
John de Beauchamp, 2nd Baron Beauchamp, (of Somerset) and wife
Margaret St John, and married secondly on 14 September 1368 Sir Gilbert Turberville of
Coity, Glamorgan.(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 II, p. 50) (Peter W. Hammond, editor, The Complete Peerage or a History of the House of Lords and All its Members From the Earliest Times, Volume XIV: Addenda & Corrigenda (Stroud, Gloucestershire, U.K.: Sutton Publishing, 1998), p. 76.)
^J. S. Roskell, The Commons in the Parliament of 1422 (Manchester University Press),
p. 126 (see footnotes)