Prince Sixtus of Bourbon-Parma attempted came from which of the two countries that made up The Powers' alliance in 1879?
Prince Sixtus of Bourbon-Parma Prince Sixtus of Bourbon-Parma (1 August 1886 – 14 March 1934) was a son of Robert I, the last reigning Duke of Parma. He was a prince of the Parmesan branch of the royal House of Bourbon; a Belgian officer in World War I; and the central figure in the Sixtus Affair, an attempt to negotiate a treaty to end Austria-Hungary's participation in the Great War separate from its Central Powers allies. He also wrote a number of books.
Juan, Count of Montizón "Don" Juan Carlos María Isidro de Borbón, Count of Montizón (French: "Jean Charles Marie Isidore de Bourbon, comte de Montizón" ) (May 15, 1822 – November 18, 1887) was the Carlist claimant to the throne of Spain from 1860 to 1868, and the Legitimist claimant to the throne of France from 1883 to 1887.