Marie de Dammartin

1225 - aft. 1279 (b. 1225)

Parents

• Simon, Count of Ponthieu
• Marie, Countess of Ponthieu

Children

• Jean III de Roucy

Siblings

• Philippa of Dammartin
• Joan, Countess of Ponthieu
• Mathilde de Dammartin
• Agathe de Dammartin

Partners

• John II de Roucy