Nielsen Hayden genealogy
Family: William de Ferrers / Agnes of Chester (F3280)
m. 1192-
Male
William de Ferrers
Birth Death 22 Sep 1247 Burial Marriage 1192 [1, 2, 3, 4, 5] Father William de Ferrers | F4973 Group Sheet Mother (Unknown wife of William de Ferrers) | F4973 Group Sheet
Female
Agnes of Chester
Birth Death 2 Nov 1247 Burial Father Hugh of Chester | F5063 Group Sheet Mother Bertrade de Montfort | F5063 Group Sheet
Female
+ Bertha de Ferrers
Birth Death Aft 10 Feb 1267 Burial Grey Friars, Dunwich, Suffolk, England 
Spouse Thomas de Furnival | F9648 Marriage Spouse Ralph le Bigod | F4096 Marriage Aft 1240
Male
+ William de Ferrers
Birth Abt 1193 of Tutbury, Burton-on-Trent, Staffordshire, England Death 24 Mar 1254 Evington, Leicestershire, England Burial 31 Mar 1254 Merevale Abbey, Warwickshire, England Spouse Sybil Marshal | F444 Marriage Bef 14 May 1219 Spouse Margaret de Quincy | F6338 Marriage Bef 1239
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Sources - [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.
- [S434] Paul C. Reed, 2 Aug 2000, three-part post to soc.genealogy.medieval.
- [S128] The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant ed. Vicary Gibbs, H. A. Doubleday, Duncan Warrand, Howard de Walden, Geoffrey H. White and R. S. Lea. 2nd edition. 14 volumes (1-13, but volume 12 spanned two books), London, The St. Catherine Press, 1910-1959. Volume 14, "Addenda & Corrigenda," ed. Peter W. Hammond, Gloucestershire, Sutton Publishing, 1998.
- [S1016] Medieval English Ancestors of Robert Abell by Carl Boyer III. Santa Clarita, California, 2001.
- [S7287] Women in Thirteenth-Century Lincolnshire by Louise J. Wilkinson. Woodbridge, Suffolk: A Royal Historical Society Publication, published by the Boydell Press, 2007.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.