A Night at the Opera (film) DVD commentary. But this could not have occurred, because Sam Marx had died in 1933, during pre-production of "Duck Soup", two years before "A Night at the Opera" was released. The rumor arose because Frenchy had had such a cameo appearance in the Marx Brothers' earlier "Monkey Business". There is, however, a reference to the Marx Brothers' mother, Minnie Marx, during the stateroom scene, in which a woman asks, "Is my Aunt Minnie in here?" Part of the concept of casting the Marx Brothers as stowaways on a ship was recycled from "Monkey Business". As Groucho's and Margaret Dumont's characters
Príncipe de Asturias (ocean liner) Príncipe de Asturias (ocean liner) Príncipe de Asturias was a Spanish ocean liner, owned by the Naviera Pinillos and built at the Russell & Co. (later Lithgows) shipyard in Port Glasgow, in Scotland; being launched in 1914. She was named after the "Prince of Asturias", the historical title given to the heir to the Spanish Crown. "Príncipe de Asturias" and her elder sister "Infanta Isabel", launched in 1912, were at the time of her construction two of the largest passenger steamship in the Spanish merchant fleet, only second to "Reina Victoria Eugenia" and "Infanta Isabel de Borbón" owned by Pinillos's