Enguerrand II of Montreuil & PONTHIEU & Adelaide de NORMANDIE 
They had a son named Piers (Peter) de.
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Personal Details
Enguerrand II of Montreuil & PONTHIEU
Enguerrand II of Montreuil & was born about 1030 in Ponthieu, Somme, Picardy, France. He died on October 25th, 1053 in Arques, Normandy, France.
Adelaide de NORMANDIE
Adelaide de was born before 1030 in Falaise, Calvados, Normandy,Ffrance. She died before 1090.
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Children
Piers (Peter) de VALOGNES
Piers (Peter) de was born about 1033 in Valognes, Contentin/Manche, Normandy, France. He died about 1087 in Essex & Hertfordshire, England.