Mano Negra dictatorship of Francisco Franco. "The Black Hand" was also the name of a Serbian nationalist underground/terrorist network before and during the First World War (and which supposedly worked out of Masonic lodges). Their most notable members include Gavrilo Princip and the group of assassins who killed Archduke Franz Ferdinand, thus triggering the war in 1914. "La Mano Negra" is also a common expression in Spanish to say, ""Aquí hubo mano negra"" ("There was a black hand here") to say that someone with authority, in a particular event, manipulated things illegally for its benefit. The expression is also used sometimes as
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