Genovia is a fictional European principality created by author Meg Cabot in her popular book series, starting with "The Princess Diaries." It is depicted as a small, picturesque country located between France and Italy, known for its charming landscapes, royal heritage, and rich culture. The story follows Mia Thermopolis, a teenager who discovers she is the heir to the Genovian throne. Throughout the series, themes of identity, friendship, and personal growth are explored as Mia navigates her new royal responsibilities while balancing her everyday life.