Hvem giftede sig med Eustace IV, Count of Boulogne?

Eustace IV (c. 1129/1131  – 17 August 1153) ruled the County of Boulogne from 1146 until his death. He was the eldest son of King Stephen of England and Countess Matilda I of Boulogne. When his father seized the English throne on Henry I's death in 1135, he became heir apparent to the English throne but predeceased his father.

Constance de France, née vers 1128 et morte à Reims un 16 août après 1177, est une princesse française du XII^e siècle, comtesse de Toulouse de 1154 à 1176.