Mauger Seigneur de ST. CLAIR 
Mauger Seigneur de was born about 1005 in St. Clair-sur-Elle, Manche, Normandy, France. He died in 1047.
They had a son named Walderne de.
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Children
Walderne de ST. CLAIR
Walderne de was born about 1022 in St. Clair-sur-Elle, Manche, Normandy, France.