Viscount de Contentin Jean de Cotentin & Marie de Falaise 
They had a son named Guillaume.
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Personal Details
Viscount de Contentin Jean de Cotentin
Jean was born in 1044 in Cotentin, Manche, Normandy, France.1
1 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=michaelrneuman&id=I062919
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=michaelrneuman&id=I045709
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=michaelrneuman&id=I045709