Nielsen Hayden genealogy
Family: Gilbert "Strongbow" fitz Gilbert / Isabel de Beaumont (F5490)
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Father | Male
Gilbert "Strongbow" fitz Gilbert
Born Abt 1100 Died 6 Jan 1148 Buried Tintern Abbey, Monmouthshire, Wales 
Married Father Gilbert fitz Richard de Clare | F2356 Group Sheet Mother Alice de Clermont | F2356 Group Sheet
Mother | Female
Isabel de Beaumont
Born Died Aft 1172 Buried Father Robert of Meulan | F1788 Group Sheet Mother Isabel de Vermandois | F1788 Group Sheet
Child 1 | Male
+ Richard "Strongbow" fitz Gilbert
Born Abt 1130 Died Abt 20 Apr 1176 Dublin, Ireland Buried Christ Church, Dublin, Ireland Spouse (Unknown mistress of Richard de Clare) | F4174 Married Spouse Eve of Leinster | F4831 Married Abt 26 Aug 1170 Waterford, Munster, Ireland