"The Princess of Cleves" by Madame de La Fayette is a French novel published in 1678. Set at the court of Henry II, it follows a young heiress who marries the Prince de Clèves but falls deeply in love with the Duke de Nemours. Torn between duty and passion, she confesses her forbidden feelings to her husband, triggering devastating consequences. This pioneering psychological novel explores inner emotions and moral struggle with remarkable depth, creating a timeless portrait of love, honor, and impossible choices. (This is an automatically generated summary.)