Family: de Fiennes, Lord William / de Brienne, Blanche (F14203)
m. 1268-
Male
de Fiennes, Lord William
Birth 1252 Buckinghamshire, England 
Death 11 Jul 1302 Kortrijk, West-Vlaanderen, Belgium Burial 16 Jul 1302 Marriage 1268 Father Mother
Female
de Brienne, Blanche
Birth 1252 Mayenne, Pays de la Loire, France Death 11 Jun 1302 Louplande, Sarthe, Pays de la Loire, France Burial Aft 11 Jun 1302 Couptrain, Mayenne, Pays de la Loire, France Father Mother
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 Spouse de Mortimer, Baron Edmund I | F14201 Marriage Sep 1285 Wigmore, Herefordshire, England