Guillaume was born about FEB 1228, the son of Floris IV van Holland and Mathilde de Brabant. The place is not known.
He died on 28 JAN 1256 in Hoogwoud, Opmeer, Holland.
His wife was Elisabeth von Braunschweig, who he married in 1252. The place has not been found. They had no known children.
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Guillaume du Saint-Empire |
Floris IV van Holland |
Willem I van Holland |
Floris III van Holland |
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Ada d'Huntingdon |
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Aleid van Gelre |
Otto I van Gelre |
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Richardis von Scheyern-Wittelsbach |
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Mathilde de Brabant |
Henri I de Brabant |
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Mathilde de Boulogne |
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| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | ABT FEB 1228 |
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| Death | 28 JAN 1256 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | FROM 1234 TO 1256 | II comte de Hollande | ||||
| Nobility Title | FROM 1247 TO 1256 | I roi des Romains | ||||
| Nobility Title | FROM 1248 TO 1254 | römisch-deutscher Gegenkönig |