Eustachie de Courtenay

• 
• Born before 1176
• Deceased after 1235

Parents

• Pierre Ier de Courtenay (c. 1126 - c. 1182), seigneur de Courtenay
• Élisabeth de Courtenay (c. 1135 - 1206), dame de Courtenay

Family

• Married with Guillaume de Brienne ( - c. 1200), issuing
  • Helvide (c. 1185 - )
• Married in 1199, with Guillaume de Champlitte (c. 1160 - 1210), prince de Morée, issuing
  • Guillaume (1200 - aft. 1271)
  • Eudes (c. 1203 - bef. 1255)
  • Élisabeth
• Married with Guillaume de Sancerre ( - 1217), seigneur de La Ferté-Loupière, croisé lors de la cinquième croisade