 | 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)
|
| Avice Marmion (1309-1378)
|
| Sir Robert de Grey (1333-1367)  |
| John de Grey ( -1385) |
