Serbian army's retreat through Albania June 1914, Gavrilo Princip, a Bosnian Serb student and member of Young Bosnia, assassinated the heir to the Austro-Hungarian throne, Archduke Franz Ferdinand of Austria in Sarajevo, Bosnia. The political objective of the assassination was to break the Austro-Hungarian's south-Slav provinces off from the Austro-Hungarian Empire. The assassination triggered a chain of events that embroiled Russia and the major European powers. This began a period of diplomatic manoeuvring among Austria-Hungary, Germany, Russia, France, and Britain called the July Crisis. Wanting to finally end Serbian interference in Bosnia and the Balkans, Austria-Hungary delivered the July Ultimatum to Serbia, a series of
Archduke Leopold Franz of Austria Archduke Leopold Franz of Austria Archduke Leopold Franz of Austria () (born 25 October 1942 at Schloss Leutstetten in Starnberg, Bavaria, Nazi Germany) was a member of the Tuscan line of the House of Habsburg-Lorraine and Archduke and Prince of Austria, Prince of Hungary, Bohemia, and Tuscany by birth. Leopold Franz was the titular Grand Duke of Tuscany from 21 January 1984 to 18 June 1993. Leopold Franz was the third eldest child and only son of Archduke Gottfried of Austria and his wife Princess Dorothea of Bavaria. Leopold Franz married Laetitia de Belzunce d'Arenberg, eldest child and only daughter