Ivo (Yvres)
Ivo was born about 1007 in Beaumont-sur-Oise, Normandy.  He died after 1080.

 Judith Adela de Gournay
Judith Adela was born about 1008 in Beaumont-sur-Oise, Normandy.  She died on April 8th, 1099.

 Adeliza de Beaumont
Adeliza was born about 1035.

 Agnes de Beaumont
Agnes was born about 1040 in Beaumont-sur-Oise, Normandy.

 Aelis Beatrix de Beaumont
Aelis Beatrix was born about 1045 in Beaumont, -Sur-Risle, France.  She died on July 11th, 1091 in Rouen, France.