| Eltern | Geschwister | Kinder |
| Robert de Eaton | ||
| William FitzAlan | ||
| William Boterell | Christiana FitzAlan | William Botreaux |
| William Boterell | Roger Botreaux | |
| Isabel Say | John FitzAlan | Reynold Botreaux |
| Reginald Boterell | ||
| Agnes FitzAlan | ||
| Petronil FitzAlan | ||
| Alianor FitzAlan | ||
| Partner | ||
| Sibella Boterell |