Walderne de St. Clair & Helen 
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Children
Walderne de St. Clair
Walderne was born in 1018 in Corbeil, Marne, Champagne-Ardenne, France.2 He died at the age of 29 in 1047 in St. Clair-sur-Elle, Manche, Normandy, France.2
William de Saint Clair
William was born in 1028 in Normandie, France.1 He died at the age of 42 in 1070 in Northumberland, England.1
1 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=sbdcdonna1&id=I19157&style=TABLE
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=michaelrneuman&id=I013519&style=TABLE
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=michaelrneuman&id=I013519&style=TABLE