Nielsen Hayden genealogy
Family: Roger de Clifford / Sibyl de Ewyas (F1438)
m. Bef 13 Feb 1217Walter II de Clifford (1150-1208) 
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Walter III de Clifford ( -1221)  |
| Robert de Ewyas ( -1195)
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Pernel Scudamore ( -1204)
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| Roger de Clifford ( -1231)
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| Sibyl de Ewyas ( -1236)
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| Roger de Clifford (1221-1286) |