Fortress of Arad their honor. The most famous prisoner in the fortress of Arad was undoubtedly Gavrilo Princip, who on 28 June 1914 killed the heir to the throne of Austria-Hungary, Archduke Franz Ferdinand and his wife, Sophie, in Sarajevo, which led to the outbreak of World War I. About the inhuman conditions in which prisoners were held in the fortress of Arad warned Ştefan Cicio Pop, deputy of the Romanian National Party in an interpellation to the Hungarian parliament in Budapest during 1917. After the first World War, the fortress was occupied by allied Serbian and French troops under French command, until
Archduke Leopold Ludwig of Austria Archduke Leopold Ludwig of Austria Archduke Leopold Ludwig of Austria (German: Leopold Ludwig Maria Franz Julius Estorgius Gerhard Erzherzog von Ósterreich) (b. Milan 6 June 1823 – d. Hórnstein 24 May 1898) was an Austrian general and admiral. He was the eldest son of Archduke Rainer Joseph of Austria (1783–1853) and Princess Elisabeth of Savoy (1800–1856) and a grandson of Emperor Leopold II. Leopold Ludwig was born in 1823 in Milan, where his father served as Viceroy of Lombardy-Venetia from 1818 to 1848. A younger brother, Archduke Rainer Ferdinand (1827–1913), served as Austrian Minister President from 1859 to 1861. Leopold