Infamous by Virginia Henley

Striking silver-gilt hair and pale green eyes give Marjory de Warenne the looks of an angel. The better to hide her willful spirit. In spite of every warning, this headstrong lady-in-waiting has given her heart to notorious Guy de Beauchamp, Earl of Warwick, a man feared on the battlefield—and in matters of seduction….
Then Jory’s guardians, who have chosen a more suitable husband for her, make her believe that Guy has betrayed her. Yet as England’s bravest men ride off to put down the Welsh rebellion, Jory’s thoughts are with the one gallant knight she can never forget—and the passion that will one day be rekindled amid the march of history….