Mary, Countess of Blois

Marie of Avesnes (1200–1241) was countess of Blois from 1230 to 1241.

She was the daughter of Walter of Avesnes and Margaret of Blois.

In 1226, Marie married Hugh I of Châtillon (sur Marne), son of Gaucher II of Châtillon and Elisabeth de Saint Pol. They had five children:

  1. John I (died 1280), Count of Blois
  2. Guy II (died 1289), Count of Saint Pol
  3. Gaucher (died 1261), lord of Crécy and Crèvecœur
  4. Hugh (died 1255)
  5. Basile (died 1280), became Abbess of Notre Dame du Val in 1248.

Her eldest son John, succeeded her in Blois.

Preceded by
Margaret		 Countess of Blois
with Hugh I
1225–1241		 Succeeded by
John I

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