Enguerrand II Count of Montreuil & Ponthieu
Enguerrand II Count of Montreuil & was born about 1024 in Ponthieu, France.  He died on October 25th, 1053 in Slain at the siege of Arque.

 Adelaide of Normandy , Countess of Aumale
Adelaide of was born before 1030 in Normandy, France.  She died before 1090.

 Guy I Count of Montreuil & Ponthieu
Guy I Count of Montreuil & was born about 1045 in Ponthieu, France.  He died on October 13th, 1100.

 Piers (Peter) de Valognes
Piers (Peter) de was born about 1050 in Valognes, Contentin, France.  He died about 1087 in of Essex & Hertfordshire, England.