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.
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.