Sir. Roger I de Mortimer, Baron

1231 - 1282  (51 years)

• Name	Roger I de Mortimer  [1, 2]
  Title	Sir.
  Suffix	Baron
  Birth	1231	Radnorshire, Wales
  Gender	Male
  Death	27 Oct 1282	Hereford, Herefordshire, England
  Person ID	I21526	My Genealogy
  Last Modified	16 May 2026

  
  

  Father	Sir. Ralph de Mortimer, Baron,   b. 1190, Wigmore, Hereford, England d. 6 Aug 1246, Wigmore, Hereford, England (Age 56 years)
  Relationship	natural
  Mother	Gwladys verch Llewellyn, Princess of North Wales,   b. Abt 1205, of, , Caernarvonshire, Wales d. 1251, Windsor, Berkshire, England (Age 46 years)
  Relationship	natural
  Marriage	1230	Radnorshire, Wales   [3, 4]
  Family ID	F5636	Group Sheet  |  Family Chart

  
  

  Family	Maud de Braose, Baroness of Wigmore,   b. Abt 1233, of, Bramber Castle, Sussex, England d. Bef 20 Mar 1301 (Age < 68 years)
  Marriage	Abt 1247  [5]
  Children	1. Sir. Edmund I de Mortimer, Baron,   b. 1252, Wigmore, Hereford, England d. 17 Jul 1304, Wigmore, Hereford, England (Age 52 years)  [Father: natural]  [Mother: natural]   2. Geoffrey de Mortimer,   b. Abt 1254, Wigmore, Hereford, England d. Yes, date unknown  [Father: natural]  [Mother: natural]   3. Baron Guillaume de Mortimer,   b. Abt 1248, Wigmore, Hereford, England d. 1297, Wigmore, Hereford, England (Age 49 years)  [Father: natural]  [Mother: natural]   4. Ralph de Mortimer,   b. Abt 1250, Wigmore, Hereford, England d. Bef 10 Aug 1274 (Age < 24 years)  [Father: natural]  [Mother: natural]   5. Roger de Mortimer, Jr.,   b. Abt 1256, Wigmore, Hereford, England d. Abt 3 Aug 1326 (Age 70 years)  [Father: natural]  [Mother: natural]   6. Isabella de Mortimer, Countess of Arundel,   b. Abt 1246, Wigmore, Hereford, England d. Bef 10 Aug 1274 (Age < 28 years)  [Father: natural]  [Mother: natural]
  Family ID	F6104	Group Sheet  |  Family Chart
  Last Modified	16 May 2026

  
  

• Sources

  [S18] Personal knowledge of Kirk Larson, [ADDRESS FOR PRIVATE USE]\. [S19] The Church of Jesus Christ of Latter-day Saints, database, \i FamilySearch\i0, (Name: (http://www.familysearch.org);). [S51] Loyd, Lewis C., "The Origins of Some Anglo-Norman Families", (Name: (Baltimore:MD, Harleian Society, 1992);), p. 70-71. [S151] Jacobus, Donald Lines, 1887-1970, "The American genealogist and New Haven genealogical magazine", (Name: (Rockport:ME, Picton Press, 1989) American Genealogist, Vol 1-34 , 1857; ISSN: 0197-6915; LC CALL NO.: F104.N6A6; FORMAT: Serial; LCCN: 36-19457 //r86;), 1980 v.1 # 1 pp. 80-91. [S30] Schmuhl, Albert F., "Royal Lines & Adamic Genealogy: Genealogical Research of Albert F. Schmuhl, ", (Name: e-mail documentation, March 1997, Albert F. Schmuhl, America Online Posting: Genealogy Forum;).