Guillaume III de Bertrand 
He had a biological son named Robert VII.
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Personal Details
Guillaume III de Bertrand
Guillaume III was born in 1170 in Château Briquebec, Manche, Normandy, France.
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Children
Robert VII de Bertrand
Robert VII was born in 1208 in Château Briquebec, Manche, Normandy, France. Robert VII is no longer alive.