New France Genealogy
Montjoie Saint Denis!
Family: De Mortimer, Hugh / De Ferrers, Agatha (F10663)
de Mortimer, Ralph (1190-1246) 
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verch Llewellyn, Fawr Gwladys (1194-1251)
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de Mortimer, Roger (1226-1282)  |
| De Mortimer, John (1235- ) |
| De Mortimer, Peter (1237- ) |
| de Ferrers, Earl/Derby William (1200-1254)
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| Marshall, Sibyl (1204-1245)
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| de Ferrers, Agnes (1224-1290) |
| de Ferrers, Isabella (1226-1260) |
| Ferrers, Maud or Matilda (1229-1299) |
| de Ferrers, Sibyl (1230- ) |
| De Ferrers, Joan (1232-1267) |
| De Ferrers, Eleanor (1236-1274) |
| Ferrers, John (1238- ) |
| De Mortimer, Hugh (1232-1273)
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| De Ferrers, Agatha (1234-1306)
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