Nielsen Hayden genealogy
Family: Robert de Ferrers / Margaret (F12436)
m. Bef 20 Oct 1330John de Ferrers (1271-1312) 
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Hawise de Muscegros (1276-1340)
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Eleanor de Ferrers ( -1361)  |
| Robert de Ferrers (1309-1350)
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| Margaret ( -1331) |
| John de Ferrers (1331-1367) |