Hildouin IV Count of Montdidier , Sire deRameru
Hildouin IV Count of was born in 1010 in Montdidier, France.  He died about 1063.¹ 

 Adelaide De Roucy
Adelaide was born in 1018.  She died at the age of 47 in 1065.

 Maurgurite deRoucy
Maurgurite was born in 1057 in Montdidier, Somme, France.  She died at the age of 49 in 1106 in England.