Family: John Fitzwilliam, [Sir Knight] / Joan De Reresby (F6380)
m. Abt 1342
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![William Fitzwilliam, [Sir Knight]](img/male.jpg){kind=small} | William Fitzwilliam, [Sir Knight] (1275-1340) |
 | Isabel Deincourt (1275-1324) |
| William Fitzwilliam, [Sir Knight] (1297-1322) |
| Adam De Reresby (1271- ) |
| John Fitzwilliam, [Sir Knight] (1298-1349)
|
| Joan De Reresby (1300- )
|
| William Fitzwilliam (1318-1341)  |
| John Fitzwilliam, [Sir Knight] (1327-1385) |
| Joan Fitzjohn, [Bs Stapleton] (1354- ) |