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Beatrice of Châtillon

Beatrice of Châtillon (died 1304), daughter of Guy III, Count of Saint-Pol, and Matilda of Brabant, married John I of Brienne, Count of Eu. She mothered his successor John II and Mahaut, wife of Alfonso de la Cerda.

References

  1. en.wikipedia.org/wiki/John_I_of_Brienne,_Count_of_Eu
  2. www.wikidata.org/wiki/Q75296116