 Father | Male2nd Baron Grey de Rotherfield John de Grey |
| Born | 09 Oct 1300 | Rotherfield Grey, Oxfordshire, England  |
| Died | 01 Sep 1359 | Rotherfield Grey, Oxfordshire, England |
| Buried | ||
| Married | ||
| Other Spouse | Katherine Fitzalan | F4613 | |
| Married | Bef 1313 | |
| Father | 1st Baron Grey de Rotherfield Sir John de Grey | F4609 Group Sheet | |
| Mother | Margaret de Odingsells | F4609 Group Sheet | |
 Mother | FemaleAvice Marmion |
| Born | 1309 | West Tanfield, Yorkshire, England |
| Died | Aft 20 Mar 1378 | Witney, Oxfordshire, England |
| Buried | ||
| Father | 4th Baron Marmion of Winteringham John Marmion | F4611 Group Sheet | |
| Mother | Maud de Furnival | F4611 Group Sheet | |
| Child 1 | Male + Sir Robert de Grey |
| Born | Abt 1333 | Ravensworth, Yorkshire, England |
| Died | Bef 18 Oct 1367 | Rotherfield Peppard, Oxfordshire, Englandmap |
| Buried | ||
| Spouse | Lora St. Quintin | F4597 | |
| Married | ||
