Nielsen Hayden genealogy
Family: Ralph fitz Ranulph / Anastasia de Percy (F2182)
Ranulph fitz Robert (1185-1252) 
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| William de Percy (1193-1245)
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Joan Briwerre ( -1233)
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| Ralph fitz Ranulph ( -1270)
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| Anastasia de Percy ( -1272)
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Mary fitz Ranulph ( -1320)  |