Herfast de CREPON 
He had a biological son named Osbern I de.
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Personal Details
Herfast de CREPON
Herfast de was born about 0975 in Crepy-en-Laonmois, Aisne, France. Herfast de is no longer alive.
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Children
Osbern I de CREPON
Osbern I de was born about 1000 in Crepy-en-Laonmois, Aisne, France. He died in Normandie, France.