| Eltern | Geschwister | Kinder |
| William Ferrers | Agnes Ferrers | |
| Isabella Ferrers | sir mohun | |
| Sybilla Marshall | Maud Ferrers | |
| Sibyl Ferrers | ||
| Joan Ferrers | ||
| Agatha Ferrers | ||
| Petronilla Dunstanville | ||
| Eleanor Ferrers | ||
| John Ferrers | ||
| Robert Ferrers | ||
| William Ferrers | ||
| Fulk Ferrers | ||
| Agnes Ferrers | ||
| Joan Ferrers | ||
| Partner | ||
| Reynold Mohun |