Nielsen Hayden genealogy
Family: Radulf III de Tosny / Isabel de Montfort (F22)
m. Between 1068 and 1070
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Male
Radulf III de Tosny
Birth Abt 1030 Death 24 Mar 1102 Burial Abbey of St. Pierre de Castillon, Conches-en-Ouche, Eure, France 
Marriage Between 1068 and 1070 [1] Father Roger I de Tosny | F336 Group Sheet Mother Godehildis | F336 Group Sheet
Female
Isabel de Montfort
Birth Death Aft 1123 Haute-Bruyere Priory, near Rambouillet, Yvelines, Île-de-France, France Burial Father Simon I de Montfort l'Aumary | F5337 Group Sheet Mother Isabel Bardoul | F5337 Group Sheet
Male
+ Ralph de Tony
Birth Abt 1081 Death 1126 Burial Châtillon-les-Conches Abbey, Eure, Normandy, France Spouse Alice of Northumberland | F2355 Marriage 1103
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Sources - [S80] Peter Stewart, "Origin and Early Generations of the Tosny Family," July 2009, rev. March 2012.
- [S80] Peter Stewart, "Origin and Early Generations of the Tosny Family," July 2009, rev. March 2012.