World War One, Gavrilo Pincip Gavrilo Pincip b. July 25 [July 13, Old Style], 1894, Obljaj, Bosniad. April 28, 1918, Theresienstadt, Austria South Slav nationalist who assassinated Archduke Francis Ferdinand, heir to the Austro-Hungarian throne, and his consort, Sophie, Duchess von Hohenberg (née Ch...