Nielsen Hayden genealogy
Family: William Bonville / Margaret Grey (F885)
m. Aft 12 Dec 1414John Bonville (1371-1396) 
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Elizabeth Fitz Roger (1370-1414)
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| Reynold Grey (1362-1440)
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| Margaret de Ros ( -1414)
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Eleanor Grey ( -1433)  |
| John Grey ( -1429) |
| Margaret Grey (1399-1426)
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| William Bonville (1391-1461)
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| Elizabeth Bonville ( -1491) |
| William Bonville ( -1460) |