| Eltern | Geschwister | Kinder |
| Agnes Ferrers | ||
| Isabella Ferrers | ||
| Maud Ferrers | ||
| Sibyl Ferrers | ||
| Joan Ferrers | ||
| Agatha Ferrers | ||
| William Ferrers | Petronilla Dunstanville | |
| Eleanor Ferrers | William Leyburn | |
| Sybilla Marshall | John Ferrers | John Leyburn |
| Robert Ferrers | ||
| William Ferrers | ||
| Fulk Ferrers | ||
| Agnes Ferrers | ||
| Joan Ferrers | ||
| Partner | ||
| Roger Leyburn |