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 Árpád of Austria Archduke Joseph Árpád of Austria Archduke Joseph Árpád Benedikt Ferdinand Franz Maria Gabriel (; 8 February 1933 – 30 April 2017) was a member of the Hungarian Palatine branch of the House of Habsburg-Lorraine. He was born in Budapest, the son of Archduke Joseph Francis of Austria and his wife, Princess Anna of Saxony. He was the great-grandson of Archduchess Gisela of Austria. He received a degree in economics from the University of Lisbon. Joseph married Princess Maria von Löwenstein-Wertheim-Rosenberg, born 1935, daughter of Karl, 8th Prince of Löwenstein-Wertheim-Rosenberg and Carolina dei Conti Rignon. They married civilly on 25 August