Nielsen Hayden genealogy
Family: Amadeo III / Mahaut of Albon (F4824)
m. 1123-
Father | Male
Amadeo III
Born Abt 1095 Died 30 Aug 1148 Cyprus 
Buried Church of St. Croix, Nicosia, Cyprus Married 1123 [1] Father Umberto II of Savoy | F5381 Group Sheet Mother Gisela of Burgundy | F5381 Group Sheet
Mother | Female
Mahaut of Albon
Born Died Aft 1145 Buried Father Guigues VIII of Albon | F4144 Group Sheet Mother Matilda | F4144 Group Sheet
Child 2 | Female
+ Alix of Savoy
Born Died Buried Spouse Humbert III de Beaujeu | F7395 Married Abt 1140
Child 3 | Female
+ Mafalda of Savoy
Born Abt 1125 Savoy, Italy Died 4 Nov 1157 Coimbra, Portugal Buried Monastery of Santa Cruz, Coimbra, Portugal Spouse Affonso I Henriques, King of Portugal | F2034 Married 1146
Child 4 | Male
+ St. Umberto
Born Abt 4 Aug 1136 Died 4 Mar 1189 Buried Spouse Beatrice de Mâcon | F2331 Married Abt 1175
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Sources - [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.
- [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.