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Roger De Ponthieu & Bertha Boulogne

They had a son named William I.

Personal Details
- Roger De Ponthieu
  Roger was born in Ponthieu, Somme, Picardie, France. He died in Ponthieu, Somme, Picardie, France.
  
  Bertha Boulogne

Children
- William I De Ponthieu
  William I was born in Ponthieu, Somme, Picardie, France. He died in Ponthieu, Somme, Picardie, France.