Hij is getrouwd met Agnes de Grey.
Zij zijn getrouwd rond 1243.
Kind(eren):
file:///E:/E-S009/genealogy/Grab_A_Site_downloads/euweb/fitzwilliam01.htm
(1) Sir William FitzThomas Fitzwilliam of Sprotborough (d by 1294) m. Agnes Grey (dau of Richard de Grey of Codnor)
Ancestry of Richard Gere
Ancestry of Kimberly Jo Brownlee
Ancestry of Mark Willis Ballard
Ancestor of
Ancestry of Meriwether Lewis (Explorer)
Ancestry of Dennis Eugene King
Ancestry of Dean Ball
Ancestry of Jesse James (Outlaw)
Ancestry of Linda Joyce Neely
Ancestry of Fred Gwynne
Ancestry of David A. Blocher (Maternal)