Nielsen Hayden genealogy
Family: William de Greystoke / Joan Fitz Hugh (F13252)
m. Abt 9 Oct 1351Ralph de Greystoke (1299-1323) 
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Alice de Audley (1300-1374)
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| Henry Fitz Hugh ( -1352)
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| Joan de Fourneux ( -1349)
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Henry Fitz Hugh (1338-1386)  |
| William de Greystoke (1321-1359)
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| Joan Fitz Hugh ( -1403)
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| Ralph de Greystoke (1353-1418) |