Mabel de Talvas d' ALENCON 
Mabel de Talvas was born in 1026 in Alencon, Eure, Normandy, France. She died at the age of 53 on December 2nd, 1079 in Burs Castle, Eure, Normandy, France.
They had a son named Roger 'Poitevin' de.
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Children
Roger 'Poitevin' de MONTGOMERY
Roger 'Poitevin' de was born in 1058 in St-Germain-de-Montgomery, Calvados, Normandy, France. He died at the age of 65 in 1123 in Lancaster, Lancashire, England.