Hildouin IV De+ Montdidier
Hildouin IV De+ was born about 1010 in Montdidier, Somme, France.  He died in 1063.

 Alix De+ Roucy
Alix De+ was born about 1014 in Roucy, Aisne, France.

 Beatrix De+ Montdidier
Beatrix De+ was born about 1032 in Montdidier, Picardy, France.  She died after 1129.

 Alix De+ Montdidier
Alix De+ was born about 1039.  She died about 1068.

 Marguerite De+ Roucy
Marguerite De+ was born about 1045 in Montdidier, Somme, France.  She died after 1103.

 Felicie De+ Montdidier
Felicie De+ was born about 1048 in Montdidier, Picardy, France.  She died on April 24th, 1086.

 Irmentrude De+ Roucy
Irmentrude De+ was born about 1048.

 Adelheid De+ Roucy
Adelheid De+ was born about 1049.

 Ebles II De+ Roucy
Ebles II De+ was born about 1050.  He died about 1104.

 Ida De+ Montdidier
Ida De+ was born about 1052 in Montdidier, Picardy, France.

 Andre De+ Montdidier
Andre De+ was born about 1054.  He died after 1118.

 Ada De+ Roucy
Ada De+ was born about 1060 in Roucy, Aisne, Picardy, France.