In 1140, Constance married
Eustace IV, Count of Boulogne, son of
Stephen, King of England. The couple were married for thirteen years until Eustace's death, they had no children. The following year, Constance was married to
Raymond V, Count of Toulouse. The marriage was arranged by her brother, who was in need of allies against
Henry II of England, particularly after the latter bolstered his presence in France by marrying Louis's former wife,
Eleanor, Duchess of Aquitaine. The marriage was an unhappy one, a factor that can explain the tense relationship between Raymond and Louis. After a decade of marriage, Raymond broke from Louis and moved towards a partnership with
Frederick Barbarossa. Constance wrote to Louis, complaining that she was isolated in Toulouse; the courtiers ignored her and her servants did not obey her orders. In addition, Constance was displeased by her husband taking mistresses. In 1165, she fled from Toulouse and returned to Paris. In 1166, with the support of
Antipope Paschal III and Frederick, Raymond repudiated Constance. Having lost the favour of Louis, Raymond was forced to perform homage to Henry for Toulouse at
Limoges in 1173. ==Issue==