The Queen's Fool by Philippa Gregory

Set in the tumultuous period of the Tudor dynasty, the story follows a young Jewish girl named Hannah Green, who possesses the gift of foresight. Disguised as a boy, she becomes a fool in the court of Queen Mary I and later serves her half-sister, Elizabeth. As Hannah navigates the dangerous political landscape, she is torn between her loyalty to the two rival queens and her own desires. Her journey is one of personal growth, as she grapples with love, faith, and the complexities of power during a time of religious and political upheaval in England.