On the heels of the Great Balkan Crisis, Austro-Hungarian forces occupied Bosnia and Herzegovina in August 1878 and the monarchy eventually annexed Bosnia and Herzegovina in October 1908 as a common holding of Cisleithania and Transleithania under the control of the Imperial & Royal finance ministry rather than attaching it to either territorial government. The annexation in 1908 led some in Vienna to contemplate combining Bosnia and Herzegovina with Croatia to form a third Slavic component of the monarchy. The deaths of Franz Joseph's brother, Maximilian (1867), and his only son, Rudolf, made the Emperor's nephew, Franz Ferdinand, heir to the throne. The Archduke was rumoured to have been an advocate for this trialism as a means to limit the power of the Hungarian aristocracy.
On the heels of the Great Balkan Crisis Austro-Hungarian forces occupied Bosnia and Herzegovina in August 1878 and the monarchy eventually annexed Bosnia and Herzegovina in October 1908 as a common holding of Cisleithania and Transleithania under the control of the Imperial & Royal finance ministry rather than attaching it to either territorial government The annexation in 1908 led some in Vienna to contemplate combining Bosnia and Herzegovina with Croatia to form a third Slavic component of the monarchy The deaths of Franz Joseph's brother Maximilian (1867) and his only son Rudolf made the Emperor's nephew Franz Ferdinand heir to the throne The Archduke was rumoured to have been an advocate for this trialism as a means to limit the power of the Hungarian aristocracy