Robert de Courbepine & partner 
They had a son named Gilbert.
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Children
Gilbert de Maminot
Gilbert was born in 1037 in Bayeux, Calvados, Normandy, France.2 He died at the age of 64 in 1101 in West Greenwich, Kent, England.2
1 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=hernan_mccor&id=P2497076693
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=hollye&id=I10090
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=hollye&id=I10090