Guy I Count of Montreuil & Ponthieu
Guy I Count of Montreuil & was born about 1045 in Ponthieu, Somme, Picardy, France.  He died in 1101 in Montreuil, Pas-de-Calais, France.

 Ada of Amiens
Ada of was born about 1045 in Amiens, Somme, Picardy, France.  Ada of is no longer alive.

 Agnes Heiress of Montreuil & Ponthieu
Agnes Heiress of Montreuil & was born about 1065 in Ponthieu, Somme, Picardy, France.  She died after October 6th, 1100.