| Father | William de FERRERS (1372 - 1445) |
| Mother | Philippa DE CLIFFORD (1371 - 1405) |
| Sibling | Thomas DE FERRERS (1394 - 1459) |
| Sibling | Henry FERRERS (1390 - 1463) |
| Sibling | Elizabeth FERRERS (1392 - 1460) |
| Sibling | Elizabeth DEFERRERS (1393 - 1434) |
| Sibling | John de FERRERS ( - ) |
| Sibling | Edmond FERRERS (1398 - ) |
| Sibling | Margaret DEFERRERS (1406 - 1487) |
| Sibling | Anne FERRERS (1409 - ) |
| Sibling | John FERRARS (1413 - ) |
| Sibling | John FERRERS (1413 - ) |
| Sibling | Edmond FERRARS (1415 - ) |
| Sibling | Thomas FERRARS (1420 - 1958) |
| Sibling | Maud Matilda FERRERS (1395 - 1462) |