Robert IX de Bertrand 
He had a biological son named Robert X.
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Personal Details
Robert IX de Bertrand
Robert IX was born in 1268 in Château Briquebec, Manche, Normandy, France. Robert IX is no longer alive.
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Children
Robert X de Bertrand
Robert X was born in 1298 in Château Briquebec, Manche, Normandy, France. Robert X is no longer alive.