King Henry II, exhausted from everlasting conflict with France and the bad habit of his sons rebelling against their father finds love, solace, and passion after falling for the youthful beauty of Alys and makes her his mistress.

Alys' father, King Louis VII of France was a man in desperate need of an heir. Alys was his fourth daughter from two wives. After divorcing Eleanor, he married Alys' mother Constance.

The desperate need for a son meant that King Louis was striding down the aisle just five weeks after Constance's death (not to say that he wasn't grieving, it was said he was deeply affected by his loss), this time with Adele of Champagne who was twenty years his junior. Alys was finally joined by the longed-for brother when she was five years old, and then another sister named Agnes.

Long before Alys came on to the scene her father had been at war, on and off, with Henry II of England. While Louis needed a son to inherit his throne, his daughters were also important as diplomatic tools. Alys first played her part in January 1169, when Louis and Henry met to sign the Treaty of Montmirail near Le Mans.