Nielsen Hayden genealogy
Family: Miles of Gloucester / Sibyl de Neufmarché (F2097)
m. 1121-
Father | Male
Miles of Gloucester
Born Abt 1100 Died 24 Dec 1143 Buried Llanthony Priory, outside Gloucester, Gloucestershire, England 
Married 1121 [1, 2, 3] Father Walter fitz Roger de Pîtres | F4528 Group Sheet Mother
Mother | Female
Sibyl de Neufmarché
Born of Brecon, Breconshire, Wales Died Buried Llanthony Priory, outside Gloucester, Gloucestershire, England Father Bernard de Neufmarché | F649 Group Sheet Mother Nest ferch Osbern | F649 Group Sheet
Child 1 | Female
+ Margaret of Hereford
Born Died Bef 29 Sep 1197 Buried Llanthony Priory, outside Gloucester, Gloucestershire, England Spouse Humphrey de Bohun | F3902 Married
Child 2 | Female
+ Bertha of Hereford
Born of Brecknock, Breconshire, Wales Died Buried Spouse William de Briouze | F6214 Married Abt 1150
Child 3 | Female
+ Lucy of Hereford
Born Died Aft 1219 Buried Llanthony Priory, outside Gloucester, Gloucestershire, England Spouse Herbert fitz Herbert | F1061 Married
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Sources - [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., "about Apr. or May 1121".
- [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.
- [S4384] George Eldridge, Hydrographer, and Eliza Jane His Wife: Their Ancestors and Their Descendants by Henry James Young. Carlisle, Pennsylvania: 1982.
- [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., "about Apr. or May 1121".