Nielsen Hayden genealogy
Family: Roger de Mowbray / Rose de Clare (F130)
m. Aft 15 Jul 1270-
Father | Male
Roger de Mowbray
Born Abt 1257 of the Isle of Axholme, Lincolnshire, England 
Died 1296 Buried Church of the Friars Preachers, Pontefract, Yorkshire, England 
Married Aft 15 Jul 1270 [1, 2, 3, 4] Father Roger de Mowbray | F151 Group Sheet Mother Maud de Beauchamp | F151 Group Sheet
Mother | Female
Rose de Clare
Born 17 Aug 1252 Died Aft 1315 Buried Church of the Friars Preachers, Pontefract, Yorkshire, England 
Father Richard de Clare | F2421 Group Sheet Mother Maud de Lacy | F2421 Group Sheet
Child 1 | Male
+ John de Mowbray
Born 4 Sep 1286 of the Isle of Axholme, Lincolnshire, England 
Died 23 Mar 1322 York, Yorkshire, England 
Buried Church of the Dominican Friars, York, Yorkshire, England 
Spouse Aline de Brewes | F4694 Married 1298 Swansea, Glamorgan, Wales 
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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., year only.
- [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., year only.
- [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., year only.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.