Yves III de Beaumont
Yves III was born about 0945 in Normandy.  Yves III is no longer alive.

 Gisela de Chevreuse
Gisela is no longer alive.

 Yves IV , Count of Beaumont-sur-Oise de Beaumont
Yves IV , Count of Beaumont-sur-Oise was born about 1005 in Beaumont.