Sarajevo say in its day-to-day governance. This lasted until 1908 when the territory was formally annexed and turned into a condominium, jointly controlled by both Austrian Cisleithania and Hungarian Transleithania. In the event that triggered World War I, Archduke Franz Ferdinand of Austria was assassinated, along with his wife Sophie, Duchess of Hohenberg in Sarajevo on 28 June 1914 by a self-declared Yugoslav, Gavrilo Princip, a member of Young Bosnia. In response, many residents of Sarajevo organized riots against the Serbs, killing two and destroying their property. In the ensuing war, however, most of the Balkan offensives occurred near Belgrade, and
Prince Lorenz of Belgium, Archduke of Austria-Este to male primogeniture by declaration of Emperor Franz Joseph I of Austria on 31 October 1914 (following the assassination of Archduke Franz Ferdinand of Austria-Este) and was confirmed by Imperial Austrian letters patent, both of which conferred it (with the traditional coat-of-arms of the House of Austria-Este) upon Lorenz's father, Archduke Robert, on 16 April 1917, and has been confirmed for Lorenz by specific reference in Article IX.1 of the constitution of the Kingdom of Belgium. The "Este" suffix descended by male primogeniture and is borne by Lorenz and his successors as heads of the Austria-Este cadet branch of the