Werri was the son of Thierry de Walcourt and Mathilde de la Roche. The date and place of his birth have not been found.
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Thierry de Walcourt |
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Mathilde de la Roche |
Henri de Namur |
Adalbert III de Namur |
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Ida von Sachsen |
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Mathilde de Limbourg |
Henri I de Limbourg |
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Adélaïde von Pottenstein |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | sire de Walcourt et de Rochefort | |||||
| Nobility Title | comte de Montaigu | |||||
| Nobility Title | avoué de Dinant |