Hildouin IV de Montdidier Count of Roucy
Hildouin IV de Montdidier was born in 1021 in Montdidier, Somme, France.  He died at the age of 41 in 1062.

 Alice de Roucy
Alice was born in 1014 in Roucy, Aisne, France.  She died at the age of 49 in 1063.

 Marguerite de Montdidier
Marguerite was born in 1045 in of Montdidier, Somme, France.  She died at the age of 65 in 1110.

 Adelheid de Roucy
Adelheid was born about 1048 in La Sarraz, Waadt, Switzerland.

 Felicie de Roucy de Montdidier
Felicie was born in 1049.  She died at the age of 37 on April 24th, 1086.

 Andre de Roucy Lord Rameru
Andre de Roucy was born about 1050 in France.

 Beatrice de Montdidier de Roucy
Beatrice was born in 1051 in of Montdidier, France.  She died after 1129.