*William de Fiennes
born about 1245 Wendover, Buckinghamshire, England
died 11 July 1302 Courtral, Flandre, Occidential, Belgium

father:
*Enguerrand Ingelram de Fiennes
born about 1210 Toleshunt, Essex, England
died 1265 Conde, Calivados, France

mother:
*Isabel Conde
born about 1214 Conde, Calvados, France

siblings:
*Maud de Fiennes born 1250 Sussex, England
Giles de Fienes born about 1251 Tolleshunt, Essex, England

spouse:
*Blanche de Brienne
born about 1245/1252 Courtrain, Mynn, France
died 1302
married 1269 Wigmore, Herefordshire, England

children:
*Margaret de Fiennes
born about 1262/1270 Wigmore, Herefordshire, England died 7 February 1333/34
Robert de Fiennes born about 1273 Fiennes, Pas-de-Calais, France
John de Fiennes born 1277 Fiennes, Pas-de-Calais, France died 1331
John de Fiennes born 1278 Fiennes, Bolonois, France died 1324/1325
Robert de Fiennes born about 1282 Roubec, France

biographical and/or anecdotal:

notes or source:
LDS