| Father | Male Knight Richard Fitzwilliam |
| Born | Abt 1415 | Of, Wadworth, Yorkshire, England> |
| Died | 22 Sep 1478 | |
| Buried | , Sprotborough, Yorkshire, England |
|
| Married | Abt 1447 | Of, Aldwark, Yorkshire, England |
| Father | Edmond Fitzwilliam | F781 Group Sheet | |
| Mother | Catherine Clifton | F781 Group Sheet | |
| Mother | Female Elizabeth Clarell |
| Born | Abt 1415 | Of, Aldwark, Yorkshire, England> |
| Died | 23 Apr 1503 | |
| Buried | 13 Jun 1503 | |
| Father | Ihomas Clarell | F775 Group Sheet | |
| Mother | Elizabeth Scrope | F775 Group Sheet | |
| Child 1 | Male Thomas Fitzwilliam |
| Born | 13 Jan 1448 | Of, Aldwark, Yorkshire, England |
| Christened | Also Of, Wadworth, Yorkshire, England |
|
| Died | 29 May 1495 | |
| Buried | Friary, Tickhill, Yorkshire, England |
| Child 2 | Female Isabel Fitzwilliam |
| Born | Abt 1450 | Of, Aldwark, Yorkshire, England> |
| Died | Y |
|
| Buried | ||
| Spouse | William Wentworth | F777 | |
| Married | ||