Yves II De+ Beaumont-Sur-Oise
He died in 1059.

 Emma+ X

 Yves III De+ Beaumont-Sur-Oise
Yves III De+ was born about 1040.  He died after 1083.

 Adelais De+ Beaumont-Sur-Oise
Adelais De+ was born about 1045 in Beaumont-sur-Oise, Val d'Oise, Ile-de-France, France.  She died on July 11th, 1091 in Hinckley, Leicestershire, England.

 Eudes De+ Beaumont-Sur-Oise
Eudes De+ was born in 1048 in Beaumont, Oise, France.  He died at the age of 48 in 1096.