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 Joseph Ferdinand of Austria Archduke Joseph Ferdinand of Austria Archduke Joseph Ferdinand of Austria (24 May 1872 – 28 August 1942) was an Austro-Hungarian Archduke and the titular Grand Duke of Tuscany from 17 January 1908 to 2 May 1921, military commander, from 1916 Generaloberst, and early advocate of air power. He later retired to life as a common citizen of Austria, and was briefly imprisoned in Dachau during the Nazi era. Joseph Ferdinand was born in Salzburg to Ferdinand IV, Grand Duke of Tuscany, the last Grand Duke of Tuscany, and his wife, Alice of Bourbon-Parma. As the fourth child and second son,