Eustache de Picquigny & partner 
They had a son named Guermond.
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Children
Comte Guermond de Picquigny
Guermond was born in 1013 in Picquigny, Somme, Picardy, France.2 He died at the age of 72 in 1085.2
1 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=dupree-simpson&id=I13873
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=michaelrneuman&id=I046567&style=TABLE
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=michaelrneuman&id=I046567&style=TABLE