Sophie, Duchess of Hohenberg
By 1910, Sarajevo was populated by just under 52,000 people. Just four years later the most famous event in the history of Habsburg Sarajevo, and perhaps in the city's history, occurred. The Assassination in Sarajevo, during which a young Serb nationalist Gavrilo Princip assassinated Archduke Franz Ferdinand of Austria and his wife Sophie, Duchess of Hohenberg, on their visit to the city, started a chain of events that would lead to World War I. At the end of the Great War and as part of the 1919 Paris Peace Conference, Austria-Hungary ceased to exist. Sarajevo became part of the new Kingdom of Yugoslavia.