Nielsen Hayden genealogy
Family: William de Radcliffe / Cecilia de Montbegon (F1822)
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Male
William de Radcliffe
Birth Bef 1169 of Radcliffe, Lancashire, England 
Death 1220 Burial Marriage Father Henry de Radcliffe | F5759 Group Sheet Mother
Female
Cecilia de Montbegon
Birth of Hornsby, Lancashire, England 
Death Abt 1202 Burial Father Roger de Montbegon | F5748 Group Sheet Mother
Male
+ Adam de Radcliffe
Birth Death Aft 1245 Burial Spouse (Unknown daughter of Alan de Curwen) | F2860 Marriage