Nielsen Hayden genealogy
William fitz Osbern
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Name William fitz Osbern [1] Born Between 1025 and 1030 [2] Gender Male Died 20 Feb 1071 Flanders
[2, 3] Alternate death 21 Feb 1071 Flanders
[2] Buried Notre-Dame de Cormeilles Abbey, Eure, Normandy, France
[2, 3] Person ID I10599 Ancestry of PNH, TNH, and others | Ancestor of AP, Ancestor of DDB, Ancestor of DGH, Ancestor of DK, Ancestor of EK, Ancestor of GFS, Ancestor of JMF, Ancestor of JTS, Ancestor of LDN, Ancestor of TNH, Ancestor of TSW, Ancestor of TWK, Ancestor of WPF Last Modified 6 Jan 2018
Father Osbern Mother Emma d'Ivry, Abbess of St. Amand Family ID F5826 Group Sheet | Family Chart
Family 1 Adeliza de Tosny, b. Between 1030 and 1035, d. 5 Oct 1066 (Age ~ 36 years) Children + 1. St. William of Breteuil, d. 1130 + 2. Emma de Breteuil, d. Aft 1096, Palestine 
Last Modified 11 Apr 2016 Family ID F5122 Group Sheet | Family Chart
Family 2 Richilde of Egesheim, d. 15 Mar 1086 Married Bef 1071 [1, 3] Last Modified 16 Dec 2015 Family ID F565 Group Sheet | Family Chart
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Notes - Earl of Hereford. One of the fifteen "proven companions" of William at Hastings. Killed at the battle of Cassel, in Flanders.
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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.
- [S80] Peter Stewart, "Origin and Early Generations of the Tosny Family," July 2009, rev. March 2012.
- [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.