"La Princesse de Clèves" is a novel written by Madame de La Fayette and published in 1678. Set in the French court during the reign of King Henry II, it explores themes of love, duty, and personal conflict. The story follows Madame de Clèves, a young noblewoman who struggles with her feelings for Duke de Nemours while being married to Prince de Clèves. The novel is notable for its psychological depth and realistic portrayal of court life. It is often considered one of the first modern novels, influencing later literature with its focus on character development and moral dilemmas. The work remains a classic in French literature.