John II of Brienne, Count of Eu French Count (1300–1302) Parents Béatrice de Châtillon John I of Brienne, Count of Eu Children Marguerite Margaret d'Eu Raoul I of Brienne, Count of Eu Siblings Jeanne de Brienne Isabeau de Brienne Margaret de Brienne Maud de Brienne Margaret d'Eu Partners Jeanne, Countess of Guînes