Guillaume I Bertrand de Bricquebec was born circa 970 to Richard de Bricquebec (947-c994) and Aubérée and died circa 1011 of unspecified causes. He married Fille de Beaufou 1010 JL . Charlemagne (747-814)/s.
|Offspring of Guillaume I Bertrand de Bricquebec and Fille de Beaufou|
|Guillaume II Bertrand de Bricquebec (1010-1049)||1010||1049||Fille d'Aumale|
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