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- Yes, date unknown
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 | Sir Sir John de Longford 1265-Yes, date unknown |
| Sir Sir John de Longford | |
| B: | 1265 |
| Longford, Ashbourne, Derbyshire, England | |
| D: | Yes, date unknown |
| Joan Byron 1268-Yes, date unknown |
| Joan Byron | |
| B: | 1268 |
| Clayton, South Manchester, Lancashire, England | |
| D: | Yes, date unknown |
| Oliver de Longford 1240-Yes, date unknown |
| Oliver de Longford | |
| B: | 1240 |
| Longford, Ashbourne, Derbyshire, England | |
| D: | Yes, date unknown |
| Agnes de Horbury 1244-Yes, date unknown |
| Agnes de Horbury | |
| B: | 1244 |
| Horbury, Wakefield, Yorkshire, England | |
| D: | Yes, date unknown |
| Nigel de Longford 1214-1274 |
| Nigel de Longford | |
| B: | 1214 |
| Longford, Ashbourne, Derbyshire, England | |
| D: | 1274 |
| Derbyshire, England | |
| Cecilia de Hathersage 1218-Yes, date unknown |
| Cecilia de Hathersage | |
| B: | 1218 |
| North Lees Hall, Derbyshire, England | |
| M: | Longford, Derbyshire, England |
| D: | Yes, date unknown |
| // -Yes, date unknown |
| // | |
| D: | Yes, date unknown |
| Henry de Longford 1188-1248 |
| Henry de Longford | |
| B: | 1188 |
| Longford, Ashbourne, Derbyshire, England | |
| D: | 1248 |