Nielsen Hayden genealogy
Family: Stephen of Blois, King Of England / Maud of Boulogne, Queen Consort of England (F7331)
m. 1125-
Father | Male
Stephen of Blois, King Of England
Born Abt 1092 Blois, Lois-et-Cher, France 
Died 25 Oct 1154 Dover, Kent, England 
Buried Married 1125 [1, 2] Father Etienne Henri | F774 Group Sheet Mother Adela of Normandy | F774 Group Sheet
Mother | Female
Maud of Boulogne, Queen Consort of England
Born Abt 1072 Died 30 May 1151 Buried Faversham Abbey, Kent, England 
Father Eustache III of Boulogne | F850 Group Sheet Mother Mary of Scotland | F850 Group Sheet
Child 1 | Male
Eustace IV
Born Died 10 Aug 1153 Buried Faversham, Kent, England 
Spouse Constance of France | F7509 Married
Child 2 | Female
+ Marie of England
Born 1136 Died 1182 Monastery of Sainte-Austreberthe, Montreuil, France 
Buried Spouse Mathieu of Flanders | F849 Married 1160
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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., "abt. 1119".
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.