| Name | Maria Cornelia Johanna Bierens de Haar | |
| Birth | 1866 | |
| Gender | Female | |
| Person ID | I236 | May |
| Last Modified | 31 Dec 2011 | |
| Family | Baron Willem Cornelius Roëll Van Hazerswronde, b. 1861 | |||||
| Marriage | Leidens Netherlands |
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| Family ID | F99 | Group Sheet | Family Chart | ||||
| Last Modified | 20 Oct 2025 | |||||