Nielsen Hayden genealogy
Family: Arnulf I "The Great" / Adèle de Vermandois (F6260)
m. 922
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Male
Arnulf I "The Great"
Birth Abt 885 Death 964 Burial Abbey of Saint-Pierre, Ghent, Flanders 
Marriage 922 [1, 2] Father Baldwin II "The Bald" | F202 Group Sheet Mother Ælfthryth of Wessex | F202 Group Sheet
Female
Adèle de Vermandois
Birth Between 910 and 915 Death 958 Burial Abbey of Saint-Pierre, Ghent, Flanders Father Heribert II | F1972 Group Sheet Mother (Unknown daughter of Robert I, King of France) | F1972 Group Sheet
Male
+ Baldwin III
Birth Abt 940 Death 961 Burial Abbey of Saint-Bertin, Saint-Omer, Pas-de-Calais, France Spouse Mathilde of Saxony | F6238 Marriage 961
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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., says "934".
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.