Hildouin IV Count deMontdidier
Hildouin IV Count was born in 1021.  He died at the age of 42 in 1063.

 Alice Adela Countess Of Roucy
Alice Adela Countess was born in 1014.  Alice Adela Countess is no longer alive.

 Margaret deMontdidier
Margaret was born in 1045.  She died at the age of 65 in 1110.

 Beatrix deMontdidier
Beatrix was born in 1051.