Nielsen Hayden genealogy
Family: Roger la Zouche / Ela Longespée (F1181)
m. Bef 1267
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Male
Roger la Zouche
Birth Abt 1241 of Ashby de la Zouche, Leicestershire, England 
Death Bef 15 Oct 1285 Burial Marriage Bef 1267 [1, 2, 3, 4] Father Alan la Zouche | F1494 Group Sheet Mother Ellen de Quincy | F1494 Group Sheet
Female
Ela Longespée
Birth Death Bef 19 Jul 1276 Burial Father Stephen Longespée | F4600 Group Sheet Mother Emeline de Ridelisford | F4600 Group Sheet
Male
+ Alan la Zouche
Birth 9 Oct 1267 North Molton, Devon, England 
Baptism North Molton, Devon, England 
Death Bef 25 Mar 1314 Burial Brackley, Northamptonshire, England 
Spouse Eleanor de Segrave | F2602 Marriage
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Sources - [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.
- [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.
- [S1526] The Ancestry of Dorothea Poyntz, Wife of Reverend John Owsley, Generations 1-15, Fourth Preliminary Edition, by Ronny O. Bodine and Bro. Thomas Spalding, Jr. 2013.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.