Hildouin De Roucy IV Count of Montdidier
Hildouin De Roucy IV Count of was born in 1010 in Montdidier, France.  He died at the age of 53 in 1063.

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

 Andrew Lord of Ramerupt & Roucy
Andrew Lord of Ramerupt & was born in 1037 in Montdidier, Somme, France.

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