Family: de Mortimer, Baron Edmund I / de Fiennes, Margaret (F14201)
m. Sep 1285-
Male
de Mortimer, Baron Edmund I
Birth 27 Oct 1252 Wigmore Castle, Wigmore, Herefordshire, England 
Death 17 Jul 1304 Wigmore Castle, Wigmore, Herefordshire, England Burial Aft 17 Jul 1304 Wigmore Castle, Wigmore, Herefordshire, England Marriage Sep 1285 [1, 2, 3, 4, 5] Wigmore, Herefordshire, England [1, 2, 3, 4, 5] Father de Mortimer, Baron Roger | F14202 Group Sheet Mother de Braose, Maud | F14202 Group Sheet
Female
de Fiennes, Margaret
Birth 1269 Fiennes, Pas-de-Calais, Nord-Pas-de-Calais, France Death 7 Feb 1334 Wigmore Castle, Wigmore, Herefordshire, England Burial Aft 7 Feb 1334 Wigmore Abbey, Wigmore, Herefordshire, England Father de Fiennes, Lord William | F14203 Group Sheet Mother de Brienne, Blanche | F14203 Group Sheet
Male
de Mortimer, Roger
Birth 25 Apr 1287 Wigmore Castle, Wigmore, Herefordshire, England Christening 3 May 1287 Thornbury, Herefordshire, England Death 29 Nov 1330 Tyburn, London, England Burial Aft 29 Nov 1330 Wigmore Abbey, Wigmore, Herefordshire, England Spouse de Geneville, Joan 2nd Baroness Geneville | F14200 Marriage 20 Sep 1301 Pembridge, Herefordshire, England
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Sources - [S789] WORLD: Family Search, Family Tree.
https://www.familysearch.org/search/tree/name - [S845] WORLD: Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom.
https://books.google.com/books/about/Complete_Peerage_of_England_Scotland_Ire.html?id=JLAKAAAAYAAJ - [S827] WORLD: Dictionary of National Biography.
https://catalog.hathitrust.org/Record/009805258 - [S820] ENGLAND: Magna Carta Sureties 1215 by Frederick Lewis Weis.
https://www.familysearch.org/search/catalog/825421?availability=Family%20History%20Library - [S2840] WORLD: Oxford Dictionary of National Biography.
https://www.oxforddnb.com/
- [S789] WORLD: Family Search, Family Tree.