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 | 1st Baron Grey de Rotherfield Sir John de Grey (1277-1311) |
 | Margaret de Odingsells (1277-1330)
|
| 4th Baron Marmion of Winteringham John Marmion (1292-1335)
|
| Maud de Furnival (1280-1348)
|
| 2nd Baron Grey de Rotherfield John de Grey (1300-1359)
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| Avice Marmion (1309-1378)
|
| Sir Robert de Grey (1333-1367)  |
| John de Grey ( -1385) |
