Mauger Seigneur de St. Clair
Mauger Seigneur de was born in 1004 in St Clair-sur-Elle, Manche, Normandy, France.  He died at the age of 43 in 1047.

 Miss St. Clair de Bassenville
Miss St. Clair de was born about 1005 in St Clair-sur-Elle, Manche, Normandy, France.  Miss St. Clair de is no longer alive.

 Walderne de St. Clair
Walderne de was born about 1025 in St Clair-sur-Elle, Manche, Normandy, France.  He died in 1078 in Killed by English in Northumberland, England.  He was buried in 1060-Lord of Rosslyn Castle, Roslin, Midlothian, Scotland.