Nielsen Hayden genealogy
Family: Henry of Lancaster / Maud de Chaworth (F1680)
m. Bef 2 Mar 1297Edmund "Crouchback" (1245-1296) 
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Blanche of Artois (1248-1302)
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Thomas of Lancaster ( -1322)  |
| Patrick de Chaworth (1254-1283)
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| Isabel de Beauchamp ( -1306)
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| Henry of Lancaster (1280-1345)
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| Maud de Chaworth (1282-1322)
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| Maud of Lancaster ( -1377) |
| Joan of Lancaster (1312-1346) |
| Henry of Grosmont (1314-1361) |
| Eleanor of Lancaster (1318-1372) |
| Mary of Lancaster (1320-1362) |