| Father | Richard Cromwell (1338 - ) |
| Mother | Maud de Bernacke (1337 - 1419) |
| Sibling | Maud de Cromwell (1355 - 1418) |
| Sibling | Lady Mary Cromwell (1352 - 1395) |
| Sibling | Elizabeth de Cromwell (1357 - 1391) |
| Sibling | John Cromwell (1364 - 1461) |
| Sibling | Richard Cromwell (1366 - ) |
| Sibling | Ralph Cromwell II (1368 - 1417) |
| Sibling | Aviceamicehawise De Cromwell (1370 - ) |
| Sibling | Avicia Cromwell (1389 - ) |
| Sibling | Matilda Cromwell (1390 - 1455) |
| Sibling | Juliana Cromwell (1392 - 1450) |
| Sibling | Elizabeth Cromwell ( - 1394) |
| Sibling | Mary Cromwell ( - ) |