Yves II Bellemontesis
Yves II was born about 0945 in Normandy,France.  He died about 1036.

 Judith
Judith was born about 0950 in Beaumont-Sur-Oise,France.  Judith is no longer alive.

 Ivo III Bellemontensis
Ivo III was born about 0975 in Beaumont-sur-Oise,Normandy,France.  He died on May 22nd, 1059.

 Adeliza de Beaumont
Adeliza was born about 1034 in Beaumont,Sur-Risle,France.  She died on July 11th, 1091 in Rouen,France.