Bosnia and Herzegovina the annexation proclamation on 6 October 1908. Despite international furor and objections to the Austro-Hungarian annexation, Russians and their client state, Serbia, were compelled to accept the Austrian-Hungarian annexation of Bosnia Herzegovina in March 1909. In 1910, Habsburg Emperor Franz Joseph proclaimed the first constitution in Bosnia, which led to relaxation of earlier laws, elections and formation of the Bosnian parliament, and growth of new political life. On 28 June 1914, a Yugoslav nationalist youth named Gavrilo Princip, a member of the secret Serbian-supported movement, Young Bosnia, assassinated the heir to the Austro-Hungarian throne, Archduke Franz Ferdinand, in Sarajevo—an event
Nicholas II of Russia wife, Queen Mary. In February 1913, Nicholas presided over the tercentenary celebrations for the Romanov Dynasty. On 21 February, a "Te Deum" took place at Kazan Cathedral, and a state reception at the Winter Palace. In May, Nicholas and the imperial family made a pilgrimage across the empire, retracing the route down the Volga River that was made by the teenage Michael Romanov from the Ipatiev Monastery in Kostroma to Moscow in 1613 when he finally agreed to become tsar. On 28 June 1914 Archduke Franz Ferdinand of Austria, heir to the Austro-Hungarian throne, was assassinated by a Bosnian Serb