"The Princess of Cleves" is a novel written by Madame de La Fayette in 1678. Set in the French royal court during the 16th century, it explores themes of love, duty, and personal conflict. The story follows Mademoiselle de Chartres, a young noblewoman who struggles with her feelings for Prince de Clèves while being married to Monsieur de Clèves. The novel is notable for its psychological depth and realistic portrayal of court life. It is considered one of the first modern novels, influencing later literature with its focus on character development and moral dilemmas. The work remains a significant piece in the canon of French literature.