Veljko Čubrilović Veljko Čubrilović Veljko Čubrilović (Serbian Cyrillic: Вељко Чубриловић; 6 June 1886 – 3 February 1915) was a Bosnian Serb who was involved in the assassination of Archduke Franz Ferdinand of Austria. He was born in Gradiška, Bosnia and Herzegovina and became a schoolteacher in Priboj Majevički. In 1914, as a member of the Black Hand secret society, he agreed to help Gavrilo Princip, Nedeljko Čabrinović, and Trifko Grabež assassinate Archduke Franz Ferdinand. His brother, Vaso Čubrilović, was also involved in the plot. On Sunday, 28 June 1914, Franz Ferdinand and Sophie von Chotkova were assassinated by Gavrilo Princip. Princip and
Archduke Leopold Ludwig of Austria Archduke Leopold Ludwig of Austria Archduke Leopold Ludwig of Austria (German: Leopold Ludwig Maria Franz Julius Estorgius Gerhard Erzherzog von Ósterreich) (b. Milan 6 June 1823 – d. Hórnstein 24 May 1898) was an Austrian general and admiral. He was the eldest son of Archduke Rainer Joseph of Austria (1783–1853) and Princess Elisabeth of Savoy (1800–1856) and a grandson of Emperor Leopold II. Leopold Ludwig was born in 1823 in Milan, where his father served as Viceroy of Lombardy-Venetia from 1818 to 1848. A younger brother, Archduke Rainer Ferdinand (1827–1913), served as Austrian Minister President from 1859 to 1861. Leopold