Gregory Philippa. The Other Boleyn Girl

The Other Boleyn Girl (2001) is a historical fiction novel written by British author Philippa Gregory, loosely based on the life of 16th-century aristocrat Mary Boleyn. Reviews were mixed; some said it was a brilliantly claustrophobic look at palace life in Tudor England, while others have consistently pointed out the lack of historical accuracy. It has enjoyed phenomenal success and popularity since its publication.
The Other Boleyn Girl concerns the sister of Anne Boleyn, of whom little is known. Inspired by the life of Mary Boleyn, Gregory depicts the annulment of one of the most significant royal marriages in English history (that of King Henry VIII and Catherine of Aragon) and conveys the urgency of the need for a male heir to the throne. Much of the history is highly distorted in her account.