Archduke Franz Ferdinand, heir to the Austro-Hungarian throne, is perhaps more notable for his death than his life.

This photograph was taken on June 28, 1914, the day an 18-year-old student named Gavrilo Princip shot him with a pistol, ending his life and sparking World War I.

It was not even the first assassination attempt of the day. Another assassin threw a bomb at Ferdinand’s car, but it bounced off, detonating nearby. The archduke and his wife were on their way to visit those injured later that day, when Princip, a Serbian member of the Black Hand organization, shot him and his wife.

Austria-Hungary would then declare war on Serbia, prompting the rest of Europe and the United States to join in. The remnants of the damage would eventually lead to World War II, making this the murder of the 20th century.