Nielsen Hayden genealogy
Family: Herbert fitz Herbert / Lucy of Hereford (F1061)
Herbert fitz Herbert ( -1154) 
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Sybil Corbet ( -1158)
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| Miles of Gloucester (1100-1143)
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Margaret of Hereford ( -1197)  |
| Herbert fitz Herbert (1140-1204)
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| Lucy of Hereford ( -1220)
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| Peter fitz Herbert (1182-1235) |