 It is a fictionalised account of the lives of 16th-century aristocrats Mary Boleyn, one-time mistress of King Henry VIII, and her sister, Anne, who became the monarch's ill-fated second wife, though much history is distorted.Production studio BBC Films also owns the rights to adapt the sequel novel, "The Boleyn Inheritance", which tells the story of Anne of Cleves, Catherine Howard and Jane Parker.King Henry VIII's marriage to Catherine of Aragon is troubled as she has not produced a living male heir to the throne, having only one surviving child, Mary.