Nielsen Hayden genealogy
Family: William de Fiennes / Joan de Say (F16722)
m. Bef 1356
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John de Fiennes ( -1351)
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| Geoffrey de Say (1305-1359)
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Maud de Beauchamp ( -1369)
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Idoine de Say ( -1378)  |
| William de Fiennes ( -1359)
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| Joan de Say ( -1378)
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| William Fiennes ( -1402) |