Nielsen Hayden genealogy
Family: Thomas fitz William / Agnes Bertram (F10281)
William fitz William ( -1219) 
|
Ela de Warenne ( -1239)
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Ellen fitz William ( -1262)  |
| Denise Fitz William ( -1284) |
| Roger Bertram (1194-1242)
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| Agnes ( -1256) |
| Isabel Bertram ( -1281) |
| Thomas fitz William (1195-1264)
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| Agnes Bertram ( -1267)
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| William fitz Thomas ( -1294) |