| Name | Role | Place | Source | |
|---|---|---|---|---|
| Cornelisje Sieuwerts van Leeuwen | Mother | 1827 | Bovenkarspel | Civil registration deaths |
| Cornelisje Sieverts van Leeuwen | Registered | 1778 | Hoorn | Member register |
| Cornelisje Sieverts van Leeuwen | Registered | 1778 | Hoorn | Member register |
| Cornelisje van Leeuwen | Baptized | 1689 | Woerden | Church records baptisms |
| Cornelisje van Leeuwen | Mother of groom | 1812 | Hoogkarspel | Civil registration marriages |
| Cornelisje van Leeuwen | Child | 1689 | Woerden | Church records baptisms |
| Maria Cornelisje van Leeuwen | Registered | 1794 | Leiden |
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