"Le Rua de Roma (1811-1832)" is a historical book written by author Genre Welschinger. This work examines the life and fate of the grandson of Napoleon I, the heir to his great empire - the children of the meeting of Joseph I Bonaparte and the Austrian empress Maria Louise. The book reveals not only the political events and vicissitudes associated with the life of the young king, but also his relations with his family, upbringing, passions and personal happiness. Welsinger allows readers to immerse themselves in the atmosphere of the turbulent times of the Revolution and the Restoration, showing the life of a small king in a big world that did not approve of him."