Nielsen Hayden genealogy
Family: William fitz Osbern / Richilde of Egesheim (F565)
m. Bef 1071-
Father | Male
William fitz Osbern
Born Between 1025 and 1030 Died 20 Feb 1071 Flanders 
Buried Notre-Dame de Cormeilles Abbey, Eure, Normandy, France 
Married Bef 1071 [1, 2] Other Spouse Adeliza de Tosny | F5122 Married Father Osbern | F5826 Group Sheet Mother Emma d'Ivry, Abbess of St. Amand | F5826 Group Sheet
Mother | Female
Richilde of Egesheim
Born Died 15 Mar 1086 Buried Abbey of Hasnon, Nord-Pas-de-Calais, France 
Other Spouse Baldwin VI | F1896 Married Abt 1055 Father Renier V | F689 Group Sheet Mother
-
Sources - [S145] Ancestral Roots of Certain American Colonists Who Came to America Before 1700 by Frederick Lewis Weis and Walter Lee Sheppard, Jr. 8th edition, William R. Beall & Kaleen E. Beall, eds. Baltimore: Genealogical Publishing Company, 2004, 2006, 2008.
- [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.
- [S145] Ancestral Roots of Certain American Colonists Who Came to America Before 1700 by Frederick Lewis Weis and Walter Lee Sheppard, Jr. 8th edition, William R. Beall & Kaleen E. Beall, eds. Baltimore: Genealogical Publishing Company, 2004, 2006, 2008.