Wilhelm was born about 1298, the son of Heinrich von Braunschweig-Grubenhagen and Agnes von Meißen. The place is not known.
He died in BET 21 JUN 1360 AND 25 JUL 1360. The place is not known.
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Wilhelm von Braunschweig-Grubenhagen |
Heinrich von Braunschweig-Grubenhagen |
Albrecht I von Braunschweig-Lüneburg |
Otto I von Braunschweig-Lüneburg |
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Mathilde von Brandenburg |
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Alessine di Montferrato |
Bonifacio II di Montferrato |
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Margherita di Savoia |
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Agnes von Meißen |
Albecht II von Meißen |
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Margaretha von Staufen |
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| Event | Date | Details | Source | Multimedia | Notes |
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| Birth | ABT 1298 |
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| Death | BET 21 JUN 1360 AND 25 JUL 1360 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | 1325 | herzog von Braunschweig zu Burg Osterode, Burg Lichtenstein und Lauterburg, and ⅓ Duderstadt |