Tristan was born about 1310, the son of Henri I de Fiennes du Bois and Marie de Saint-Venant. The place is not known.
His wife was Florisse de Thermanil, who he married in ABT 1360. The place has not been found. Their only known child was Jean dit Mansart (c1345-1411).
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Tristan de Fiennes du Bois |
Henri I de Fiennes du Bois |
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Robert I Brunel de Wavrin |
Robert II de Wavrin |
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Mathilde de Béthune |
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Marie de Roye |
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| Event | Date | Details | Source | Multimedia | Notes |
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| Birth | ABT 1310 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | seigneur des Querdes | |||||
| Nobility Title | gouverneur de Lille, de Douay et d'Archies |