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Margaret Eleanor (Fiennes) de Mortimer (abt. 1264 - 1334)

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Margaret Eleanor de Mortimer formerly Fiennes aka de Fiennes
Born about in Wigmore, Herefordshire, Englandmap
Ancestors ancestors
Wife of — married [date unknown] [location unknown]
Descendants descendants
Died in Wigmore, Herefordshire, Englandmap
Profile last modified | Created 3 Jan 2011
This page has been accessed 5,067 times.
Margaret (Fiennes) de Mortimer was a member of aristocracy in the British Isles.


Margaret de Fiennes, Baroness Wigmore MP
Birth: circa 1269 at Wigmore, Herefordshire
Death: 7 Feb 1334 at Wigmore, Herefordshire


  • Father: Guillaume (William) II de Fiennes, Baron de Tingry, Lord of Wendover.
  • Mother: Blanche de Brienne, granddaughter of John of Brienne by his third wife Berenguela of Leon.
  • Siblings: William de Fiennes; Alice de Fiennes; Joan de Fiennes; Robert De Fiennes; Jean I, seigneur de Fiennes and 3 others.

Margaret married circa 1285 to Edmund de Mortimer,[1] 2nd Baron Wigmore (1251 – July 17, 1304). He was the second son and eventual heir of Roger Mortimer, 1st Baron Wigmore, and Maud de Braose.


  • Matilda (Maud) m. Theobald II de Verdun; born about 1286, she died on 18 Sep 1312 in Alton, Staffordshire, England. She was buried on 9 Oct 1312 in Croxden Abbey, Staffordshire, England.
  • Roger, 1st Earl of March, was born on 3 May 1287. He died on 29 Nov 1330; m. Joan de Geneville.
  • Sir Hugh, Rector of old Radnor, was born about 1290 and d. c. 1380.
  • Joan was born about 1292.
  • Walter, Rector of Kingston, was born about 1294.
  • Edmund, Rector of Hodnet, Treasurer of York Cathedral, was born about 1298.
  • John was born in 1300. He died on 3 Jan 1318, slain in a Joust by John de Leyburn.
  • Isolde (Iseude, Iswolde) was born about 1270, m. Hugh I de Audley (although FMG has her as the daughter of a mistress). She died in 1328.
  • Margaret was born about 1296.
  • Elizabeth was born about 1302.

Edmund de Mortimer died 17 Jul 1304 and dower was assigned to his widow on 25 Sep 1304. Although the castle of Radnor was returned to Margaret, she was not allowed to reside there and was housed in various places on the orders of the King. Her lands were seized by the King in 1322 and were restored to her in 1328. Margaret died on 7 Feb 1333/34.[1]


  1. 1.0 1.1 Doubleday, H.A. and Lord Howard de Walden, ed., The Complete Peerage or A History of the House of Lords and All Its Members From The Earliest Times, London: The St. Catherine Press, 1936. Accessed online at LDS, Vol. IX, page 283.

See also:

  • Richardson, Douglas, Royal Ancestry, 2013, Vol. IV, p. 168-170.
  • G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, eds., The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 vols. in 14 (1910-1959; reprint in 6 vols., Gloucester, U.K.: Alan Sutton Publishing, 2000), Vol. I, page 347.
  • Peter W. Hammond, ed., The Complete Peerage or a History of the House of Lords and All its Members From the Earliest Times, Vol. XIV: Addenda & Corrigenda (Stroud, Gloucestershire, U.K.: Sutton Publishing, 1998), page 52.
  • Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists who Came to America Before 1700, 7th ed., Baltimore MD: Genealogical Publishing Co., Inc., 1992. Access online (search only) at GoogleBooks, Line 120, p.107.
  • profile of Margaret de Finnes.
  • Roberts, Gary Boyd, The Royal Descents of 600 Immigrants. Baltimore, MD, USA: Genealogical Publishing Co., 2004; [database on-line], Provo, UT, USA: Operations, Inc., 2006: #467 p.385-6.
  • Family tree/GEDCOM import [link not working on 11/15/18]
  • Pedigree Resource File CD 49: Salt Lake City, UT: Intellectual Reserve, Inc., 2002.
  • Ancestral File: The Church of Jesus Christ of Latter-Day Saints.


This page has been edited according to Style Standards adopted January 2014. Descriptions of imported gedcoms for this profile are under the Changes tab.

Items below are (1) unsourced and (2) relate to her husband. Can we remove?

Edmund de Mortimer, 1st Lord Mortimer, M, #102549, b. between 1270 and 1275, d. 1304

Edmund de Mortimer, 1st Lord Mortimer; son of Roger de Mortimer, Lord of Wigmore b. c 1232 d. c 30 Oct 1282 and Maud de Braose d. c 23 Mar 1300; grandson of Ralph de Mortimer b. 1190 d. 6 Aug 1246 and Gwladus D. d. 1251 and William de Briouze b. 1204 d. 2 May 1230 Eva Marshal

Edmund de Mortimer, 1st Lord Mortimer was born between 1270 and 1275. He was the son of Roger de Mortimer, Lord of Wigmore and Maud de Braose. He married Margaret de Fiennes, daughter of William de Fiennes, Baron of Tingry and Blanche de Brienne, Dame de La Loupelande. He died in 1304.

Edmund de Mortimer, 1st Lord Mortimer gained the title of 1st Lord Mortimer. Child of Edmund de Mortimer, 1st Lord Mortimer

  • Roger de Mortimer, 1st Earl of March+ b. 1287, d. 1330

Sir Edmund de Mortimer, 1st Lord Mortimer married Margaret de Fiennes, daughter of Sir William de Fiennes, in 1285/2

Sir Edmund de Mortimer, 1st Lord Mortimer lived at Wigmore, Herefordshire, England. He gained the title of 1st Lord Mortimer. Child of Sir Edmund de Mortimer and Margaret de Fiennes

  • Isolt de Mortimer+1 d. a 1336.

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Pedigree of de Mortimer
Pedigree of de Mortimer


On 25 Feb 2019 at 05:57 GMT Anonymous (Holland) Carroll wrote:

Source: Douglas Richardson. Royal Ancestry: A Study in Colonial and Medieval Families, 5 vols, ed. Kimball G. Everingham (Salt Lake City: the author, 2013), volume I, page 475 BOULOGNE 9iii.

Margaret De Fiennes, married Edmund Ee Mortimer, Knt., 1st Lord Mortimer.

Thank you!

Margaret is 22 degrees from Jim Angelo, 19 degrees from Willis Carrier and 9 degrees from Henry VIII of England on our single family tree. Login to find your connection.

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