http://fmg.ac/Projects/MedLands/ENGLISH%20NOBILITY%20MEDIEVAL2.htm#RogerMortimerdied1330B

  [ISOLT de Mortimer (before 1273[212]-after 1336).  According to the Complete Peerage[213], Isolt was the daughter of Edmund Mortimer and his wife Margaret de Fiennes.  However, this is chronologically impossible if Isolt gave birth to her son Hugh Audley in [1289][214].  It is therefore assumed that Isolt was Edmund Mortimer's illegitimate daughter, although no proof has been found that this is correct.  Another possibility is that she was Edmund's sister[215].  Her first name suggests a Welsh origin.  Edmund Mortimer gave her and her first husband the manor of Arley, Staffordshire[216].  m firstly (before 1287) Sir WALTER de Balun of Much Marcle, Herefordshire (-after 1287).  m secondly (before 7 Jan 1293) HUGH de Audley, son of JAMES de Audley of Heleigh, Staffordshire & his wife Ela Longespee ([1267]-[Wallingford Castle] [Nov 1325/Mar 1326]).  

Sir Hugh de AUDLEY Lord Audley [Parents] 1, 2, 3, 4, 5, 6, 7, 8, 9 was born 1267 in Heleigh, Staffordshire, England. He died Mar 1326 in Wallingford, Berkshire, England. Hugh married 10 Iseult de MORTIMER on 1289 in Stratton Audley, Oxfordshire, England.

Iseult de MORTIMER [Parents] 1, 2, 3, 4, 5, 6, 7, 8 was born 1262 in Wigmore, Herefordshire, England. She died Aug 1338 in Stratton Audley, Oxfordshire, England. Iseult married 9 Sir Hugh de AUDLEY Lord Audley on 1289 in Stratton Audley, Oxfordshire, England.

   Other marriages:

       BALUN, Walter de Knight

They had the following children:

     		M 	i 	Sir James de AUDLEY Knight was born 1290 and died 1324.
     		M 	ii 	Sir Hugh de AUDLEY Earl of Gloucester was born 1294 and died 10 Nov 1347.
     		F 	iii 	Alice de AUDLEY was born 1302 and died 12 Jan 1374.

ISOLDE7 DE MORTIMER (Edmund6, Roger5, Ralph4, Roger3, Hugh2, Hugh1) of Wigmore, daughter of (8) Sir Edmund6, was born circa 1265, and died between 1336 and 1340[29]. She married of Wigmore, (CC-4) BARON HUGH DE AUDLEY, son of (CC-2) Sir James and (PN-39) Ela (LONGESPEE), who was born circa 1267[29], and died circa 1325[29]. [32, 9, 39, 46, 27, 21, 1] Weis, Roberts, Langston & Buck, and Buck & Beard all list Isolde as daughter of Edmund, son of Roger.

Richardson lists Isolde as sister of Edmund, and daughter of Roger, but cites multiple sources for each of the two possibilities, and the majority of them list her as daughter of Edmund.

Weis lists her as daughter of Margaret de Fienes in Magna Charta Sureties, but as the daughter of an unknown wife in Ancestral Roots. [43, 32, 9] Children: See (CC-4) Baron Hugh de AUDLEY

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He [Edmund, Baron Mortimer] also had a daughter Isolt by his first wife [Margaret de Fiennes]. Isolt m. (1) Walter de Balun, (2) Hugh Audley, Lord Audley (Complete Peerage, 14:488). However, this is chronologically impossible if Isolda was the mother of Hugh de Audley, born 1289. She might have been Edmund's illegitimate daughter.

Edmund was a cleric in the church (Canon of Hereford Church, Prebender of Salisbury, Treasurer & Clerk of York) until 24 Nov 1282, when he inherited his father's lands, resigining his positions in the church. Thus Edmund is not likely to have had children at an early date. He gave the manor of Arley, (Staffordshire) to Isolda de Mortimer and her first husband Walter de Balun.

Douglas Richardson and Paul Reed argue that Isolda Mortimer was Edmund's sister, not his daughter (soc.genealogy.medieval).

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Isolt de Mortimer was the daughter of Sir Edmund de Mortimer, 1st Lord Mortimer and Margaret de Fiennes.1,2 She married, firstly, Sir Walter de Balun before 1286/87.1 She married, secondly, Hugh Audley, 1st Lord Audley (of Stratton Audley), son of James of Aldithley and Ela Longespée, between 1288 and 7 January 1293.1 She died after 1336.1

    Isolt de Mortimer was also known as Isolde de Mortimer.3 From before 1286/87, her married name became de Balun.1 From between 1288 and 7 January 1293, her married name became Audley.1 She brought her second husband the manors of Eastingdon, Gloucestershire and of THornbury, Herefordshire.1 As a result of her marriage, Isolt de Mortimer was styled as Lady Audley on 15 May 1321. On 12 April 1326 she had livery of the manor of Arley, Staffordshire.1

Children of Isolt de Mortimer and Hugh Audley, 1st Lord Audley (of Stratton Audley)

   * Sir James Audley+4 b. b 1289, d. b 1 Mar 1333/34
   * Hugh Audley, 1st and last Earl of Gloucester+5 b. c 1289, d. 10 Nov 1347
   * Alice Audley+ b. c 1304, d. 12 Jan 1373/74

Citations

  1. [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 I, page 347. Hereinafter cited as The Complete Peerage.
  2. [S2] 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), page 52. Hereinafter cited as The Complete Peerage, Volume XIV.
  3. [S125] Richard Glanville-Brown, online <e-mail address>, Richard Glanville-Brown (RR 2, Milton, Ontario, Canada), downloaded 17 August 2005.
  4. [S6] Cokayne, and others, The Complete Peerage, volume I, page 348.
  5. [S6] Cokayne, and others, The Complete Peerage, volume I, page 346.

Hugh Audley [Parents] was born about 1250 in Staffordshire, England. He died in 1325. He married Isolde De Mortimer in 1285 in Hereford, England.

Isolde De Mortimer [Parents] 1, 2 was born 3, 4 about 1265 in Wigmore, England. She died after 1336. She married Hugh Audley in 1285 in Hereford, England.

   Other marriages:

       De Audley, Hugh , Ambassador To France
       De Greystoke, Ralph , Sir

They had the following children:

     		M 	i 	Hugh Audley.
     		F 	ii 	Alice Audley.

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father:

• Edmund de Mortimer

born 1252 Wigmore, Herefordshire, England christened 1304 died 17 July 1304 Wigmore, Herefordshire, England buried Wigmore, Herefordshire, England

mother:

• Margaret de Fiennes

born about 1262/70 Wigmore, Herefordshire, England died 7 February 1333/34 married Abt 1285 Of Fiennes, Bolonois, France

siblings:

• Roger Mortimer born 3 May 1287 Netherwood, Thornbury, Herefordshire, England

died 29 November 1330 Elms, Tyburn, Warwickshire, England buried 1330 Church of Grey Friar, Shrewsbury, Shropshire, England Matilda (Maud) de Mortimer born about 1286 Wigmore, Herefordshire, England died 18 September 1312 Alton, Staffordshire, England buried 9 October 1312 Croxden Abbey, Staffordshire, England Hugh de Mortimer born about 1290 Wigmore, Herefordshire, England Joan de Mortimer born about 1292 Wigmore, Herefordshire, England Walter de Mortimer born about 1294 Wigmore, Herefordshire, England Edmund de Mortimer born about 1298 Wigmore, Herefordshire, England John de Mortimer born 1300 Wigmore, Herefordshire, England died 3 January 1318 Margaret de Mortimer born 1296? Wigmore, Herefordshire, England Elizabeth Mortimer born 1302? Wigmore, Herefordshire, England

spouse:

• Hugh Baron Audley

born about 1250 Audley, Staffordshire, England

children:

• Hugh de Audley born 1289 Stretton, Audley, Oxfordshire, England

died 10 November 1347 France buried Priory of Tunbridge, Kent, England Nicholas de Audley born about 1290 Nottingham, England James de Audley born about 1292 Stratton Audley, Oxfordshire, England died after 1 January1333/34

• Alice de Audley born about 1304 Hadley, Staffordshire, England

died 11 January 1373/74 Greystoke, Northumberland, England buried Cathedral, Durham, England

biographical and/or anecdotal:

notes or source: LDS