Children |
| 1. Frances Fitzwilliam, b. 1540, Lincolnshire, England, United Kingdom d. 1650 (Age 110 years) |
| 2. Mary Fitzwilliam, b. Abt 1552, Mablethorpe, Lincolnshire, England d. 27 Nov 1607, Lincoln, Lincoln, England (Age ~ 55 years) |
| 3. Thomas Fitzwilliam, b. Abt 1557, Skidbrooke, Lincolnshire, England d. Yes, date unknown |
| 4. Robert Fitzwilliam, b. Abt 1560, Skidbrooke, Lincolnshire, England d. Yes, date unknown |
| 5. George Fitzwilliam, b. Abt 1562, Skidbrooke, Lincolnshire, England d. Yes, date unknown |
| 6. Bridget Fitzwilliam, b. 1566, Skidbrooke With Saltfleetby Haven, Lincolnshire, England d. 1622, Sharpham House, Devonshire, England (Age 56 years) |
| 7. Elizabeth Fitzwilliam, b. Abt 1568, Skidbrooke, Lincolnshire, England d. Yes, date unknown |
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