Alphonso of Brienne

Count of Eu (1227–1270)

Parents

• Berengaria of León
• John of Brienne

Children

• John I of Brienne, Count of Eu
• Blanche d'Eu
• Margaret d'Eu
• Isabeau de Brienne
• Raoul d'Eu

Siblings

• Marie of Brienne
• John II of Brienne
• Louis of Brienne
• Isabella II of Jerusalem

Partners

• Marie of Lusignan, Countess of Eu