Nielsen Hayden genealogy
Family: Robert Curthose / Sibyl of Conversano (F954)
m. Sep 1100-
Father | Male
Robert Curthose
Born in or Aft 1050 Died Abt 3 Feb 1134 Cardiff, Glamorgan, Wales 
Buried Gloucester Abbey, Gloucester, Gloucestershire, England 
Married Sep 1100 [1] Italy [1] 
Father William I, King of England | F409 Group Sheet Mother Matilda of Flanders, Queen Consort of England | F409 Group Sheet
Mother | Female
Sibyl of Conversano
Born Died 1103 Buried Father Goffredo of Conversano | F966 Group Sheet Mother
Child 1 | Male
William Clito
Born 25 Oct 1102 Rouen, Seine-Maritime, Normandy, France 
Died 28 Jul 1128 Buried Abbey of Saint-Bertin, Saint-Omer, Pas-de-Calais, France 
Spouse Sibyl of Anjou | F1571 Married 1123 Spouse Joanna of Montferrat | F5430 Married 1127
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Sources - [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.