1229 - 1291 (62 years)
| Avice Marmion | |
| B: | 1309 |
| West Tanfield, Yorkshire, England | |
| D: | Aft 20 Mar 1378 |
| Witney, Oxfordshire, England | |
| 2nd Baron Grey de Rotherfield John de Grey | |
| B: | 09 Oct 1300 |
| Rotherfield Grey, Oxfordshire, England | |
| D: | 01 Sep 1359 |
| Rotherfield Grey, Oxfordshire, England | |
| Maud de Furnival | |
| B: | Abt 1280 |
| England | |
| D: | Aft 1347 |
| England | |
| 4th Baron Marmion of Winteringham John Marmion | |
| B: | Abt 1292 |
| England | |
| D: | 30 Apr 1335 |
| England | |
| Sir Thomas de Furnival | |
| B: | Aft 1251 |
| Nottinghamshire, England | |
| D: | Bef 18 Apr 1332 |
| Sheffield, Yorkshire, England | |
| Joan Despenser | |
| B: | Abt 1264 |
| Loughborough, Leicestershire, England | |
| M: | Bef Jan 1273 |
| England | |
| D: | Bef 08 Jun 1322 |
| Worksop, Nottinghamshire, England | |
|
| Thomas de Furnival | |
| B: | 1229 |
| Worksop, Nottinghamshire, England | |
| D: | 12 May 1291 |
| Sheffield Castle, Yorkshire, England | |
