Grimoult de Plessis
Grimoult was born in 0990 in Plessis, Calvados, Normandy, France.  He died at the age of 57 in 1047 in In dungeon.

 Mathilda de Normandy
Mathilda was born in 0974 in Normandy, France.  She died about 1017.

 Adelica Belvoir de Plessis
Adelica Belvoir was born in 1019 in Plessis, Calvados, Normady, France.