Archduke Karl Salvator of Austria

Archduke Karl Salvator of Austria, in Italian Carlo Salvatore Maria Giuseppe Giovanni Battista Filippo Jacopo Gennaro Lodovico Gonzaga Raniero, in German Karl Salvator Maria Joseph Johann Baptist Philipp Jakob Januarius Ludwig Gonzaga Ranier (Florence, 30 April 1839 – Vienna, 18 January 1892), was a member of the Tuscan branch of the House of Habsburg.
Early life and career.
He was an Austrian Archduke, a son of Leopold II, Grand Duke of Tuscany and second wife Marie Antoinette of Tuscany. He was a "Feldmarschall-Leutnant" of the Imperial (k.u.k.) Austro-Hungarian Army. He worked with Count George von Dormus as inventor of early self-loading small arms including the Salvator Dormus pistol and the Salvator-Dormus M1893 heavy machine gun.
Family and children.
He married in Rome on 19 September 1861 his first cousin Princess Maria Immaculata of Bourbon-Two Sicilies (Naples, 14 April 1844 - Vienna, 18 February 1899), daughter of his maternal uncle Ferdinand II of the Two Sicilies, and second wife Maria Theresa of Austria.
Their children were: