Guillaume was born about 1080, the son of Conrad de Béziers but his mother is unknown. The place is not known.
His wife was Mantiline Trencavel, who he married on 19 DEC 1105. The place has not been found. Their two known children were Métheline (>1105-?) and Adélaïde (c1106-?).
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Guillaume-Arnaud de Béziers-Sauvian |
Conrad de Béziers |
Gaucelme-Arnaud de Béziers |
Arnaud de Béziers |
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Engeltrude de Montpellier |
Guilhelm III Bernard de Montpellier |
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Béliarde |
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| Event | Date | Details | Source | Multimedia | Notes |
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| Birth | ABT 1080 |
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