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

 Adelaide de NORMANDIE
Adelaide de was born about 1027 in Normandy, France.  She died before 1090.

 Peter de VALOGNES
Peter de was born about 1060 in Valognes, Contentin, France.