Ct. Hildouin II of Roucy & Montdidier
Hildouin II of Roucy & Montdidier was born about 0960 in Montdidier, Somme, Picardie, France.  He died after 1037.

 Lesseline Dammartin
Lesseline is no longer alive.

 Ct. Hildouin III of Rouci & Montdidier
Hildouin III of Rouci & Montdidier was born about 1000 in Montdidier, Somme, Picardie, France.  He died in 1063.

 Ct. Manasses of Dammartin
Manasses of Dammartin was born about 1010 in Dammartin, S, France.  He died  due to battle casualty on November 15th, 1057 in Lorraine, France battle of Bar.