William FitzWilliam
Abt 1250 - Yes, date unknownDrag or scroll to see more of the chart.
| Lord Geoffrey FitzWilliam de Walker of Chesterfield, X | |
| B: | 1332 |
| Gloucestershire, England | |
| D: | 1399 |
| Yorkshire, England | |
 | Mary Lamiot Abt 1345-1400 |
| Mary Lamiot | |
| B: | Abt 1345 |
| England, United Kingdom | |
| M: | Abt 1362 |
| England, United Kingdom | |
| D: | 1400 |
| John FitzWilliam Abt 1303-1377 |
| John FitzWilliam | |
| B: | Abt 1303 |
| Gloucestershire, England | |
| D: | 1377 |
| England, United Kingdom | |
| Elizabeth Clynton 1300-Yes, date unknown |
| Elizabeth Clynton | |
| B: | 1300 |
| Huntingdonshire, England | |
| M: | 1320 |
| Huntingdonshire, England | |
| D: | Yes, date unknown |
| John Fitzwilliam 1273-1333 |
| John Fitzwilliam | |
| B: | 1273 |
| London, England | |
| D: | 1333 |
| England, United Kingdom | |
| Lady Joan Reresby 1300-1342 |
| Lady Joan Reresby | |
| B: | 1300 |
| Yorkshire, England | |
| D: | 1342 |
| Picardie, France | |
| William FitzWilliam Abt 1250-Yes, date unknown |
| William FitzWilliam | |
| B: | Abt 1250 |
| D: | Yes, date unknown |
| Isabel Deincourt Abt 1253-Yes, date unknown |
| Isabel Deincourt | |
| B: | Abt 1253 |
| England, United Kingdom | |
| D: | Yes, date unknown |