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John Lord of Beauvoir & Marguerite of Enghien

They had a son named Peter I.

Personal Details
- John Lord of Beauvoir
  
  Marguerite of Enghien
  She died in 1397.

Children
- Peter I Count of St Pol Conversano and Brienne
  Peter I was born in 1397. He died at the age of 36 in 1433.