Nielsen Hayden genealogy
Family: William de Ros / Eustache fitz Ralph (F1374)
m. 1268-
Father | Male
William de Ros
Born of Ingmanthorpe in Kirk Deighton, Yorkshirem, England 
Died Bef 28 May 1310 Buried Grey Friars, York, Yorkshire, England Married 1268 [1, 2, 3] Father William I de Ros | F3385 Group Sheet Mother Lucy fitz Peter | F3385 Group Sheet
Mother | Female
Eustache fitz Ralph
Born of Greasley, Nottinghamshire, England Died Aft 1300 Buried Grey Friars, York, Yorkshire, England Father Ralph fitz Hugh | F1965 Group Sheet Mother Joan de la Haye | F1965 Group Sheet
Child 1 | Female
+ Isabel de Ros
Born of Ingmanthorpe, Kirk Deighton, Yorkshire, England Died 1309 Buried Spouse Marmaduke de Thweng | F2441 Married 1273
Child 2 | Female
+ Ivette de Ros
Born of Ingmanthorpe, Yorkshire, England Died Buried Spouse Geoffrey le Scrope | F1620 Married Bef 1312
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Sources - [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.
- [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.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.