Enguerrand
Enguerrand was born about 1025 in Ponthieu, France.  He died on November 20th, 1052 in Slain at seige of Arques.

 Adbelahide De Normandie
Adbelahide was born in 1029 in Normandy, France.  She died before 1090.

 Peter de Valognes
Peter was born about 1045 in Valognes, France.  He died about 1087.

 Adeliza De Ponthieu
Adeliza was born about 1046 in Ponthieu, Normandy, France.  She died in 1119.