William III De Montpellier Seigneur 
William III's father is Bernard William I De Montpellier Seigneur and his mother is Beliarde (). His paternal grandfather is William I De Montpellier Seigneur. He was an only child. William III is no longer alive.
He had a biological son named Bernard William III.
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Children
Bernard William III De Montpellier Seigneur
Bernard William III was born about 1030. He died before 1076. He was buried before 1076.
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