For ten points, name this June 28, 1914 event in which Gavrilo Princip killed an Austro-Hungarian royal, triggering World War I.
Nedeljko Cabrinovic tried to accomplish this act with a bombing earlier in the day. The July Ultimatum was sent in response to this event, which was planned by the (*) Black Hand, a pro-Serbian group. For ten points, name this June 28, 1914 event in which Gavrilo Princip killed an Austro-Hungarian royal, triggering World War I.
Nedeljko Cabrinovic tried to accomplish this act with a bombing earlier in the day.
assassination of Archduke Franz Ferdinand (accept terms like "killing" or "shooting" instead of "assassination;" do not accept or prompt partial name)