Carlos Delargo, son of a royal princess of Mandorra who has been banished, is returned to the kingdom to face a murder charge, but is freed by King Lorenzo, to whom Dalargo bears a remarkable resemblance. When the king is wounded by assassins working for Napoleon, Delargo takes over the throne, at the request of Prime Minister Triano, in a plan to thwart the traitors. He also falls in love with the king's fiancée, Princess Teresa.
The Brigand
In the 1800s, after an assassination attempt by Prince Ramon against the king of Mandorra, a brigand resembling the king surreptitiously impersonates the incapacitated monarch in order to throw off the plotters.