| Eltern | Geschwister | Kinder |
| Thomas Mowbray | ||
| Richard Fitzalan | Margaret Mowbray | |
| Elizabeth Fitzalan | Isabel Mowbray | |
| Elizabeth Bohun | Richard Fitzalan | John Mowbray |
| William Fitzalan | Elizabeth Mowbray | |
| Joan Fitzalan | ||
| Margaret Fitzalan | ||
| Alice Fitzalan | ||
| Thomas Fitzalan | ||
| Partner | ||
| Thomas Mowbray |