Who is XXX's sister?
Napoléon Charles Bonaparte, 5th Prince of Canino
Napoléon Charles Bonaparte, 5th Prince of Canino and Musignano (Napoléon Charles Grégoire Jacques Philippe Bonaparte; 5 February 1839 -- 11 February 1899), was born in Rome as the son of Charles Lucien Bonaparte and Zénaïde Laetitia Julie Bonaparte.
Julie Bonaparte