Nielsen Hayden genealogy
Family: John de Byron / Joan le Tyas (F21199)
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Baldwin le Tyes ( -1232) |
Margery de Eland (1190-1235)
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Francis Le Tyes ( -1305)  |
| John de Byron ( -1298)
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| Joan le Tyas ( -1298)
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| John de Byron ( -1318) |