Gui Count on the Breton March UNKNOWN 
He had a biological son named Lambert I de.
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Personal Details
Gui Count on the Breton March UNKNOWN
Gui Count on the Breton March was born about 0745 in Bretagne, france. He died in 0814.
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Children
Lambert I de NANTES
Lambert I de was born about 0765 in Nantes, Loire-Atlantique, France. He died in Spoleto.