Cvjetko Popović was a Serb born in Bosnia and Herzegovina

Bosnia and Herzegovina

Bosnia and Herzegovina , sometimes called Bosnia-Herzegovina or simply Bosnia, is a country in Southern Europe, on the Balkan Peninsula. Bordered by Croatia to the north, west and south, Serbia to the east, and Montenegro to the southeast, Bosnia and Herzegovina is almost landlocked, except for the...

 in 1896. He was a student in Sarajevo

Sarajevo

Sarajevo |Bosnia]], surrounded by the Dinaric Alps and situated along the Miljacka River in the heart of Southeastern Europe and the Balkans....

 when Danilo Ilić recruited him and his friend, Vaso Čubrilović

Vaso Cubrilovic

Vaso Čubrilović was a student in Sarajevo, when Danilo Ilić recruited him and his friend, Cvjetko Popović, to help assassinate Archduke Franz Ferdinand of Austria...

 to help assassinate Archduke Franz Ferdinand.

Nikola Pašić

Nikola Pašic

Nikola P. Pašić was a Serbian and Yugoslav politician and diplomat, the most important Serbian political figure for almost 40 years, leader of the People's Radical Party who, among other posts, was twice a mayor of Belgrade...

, the prime minister of Serbia

Serbia

Serbia , officially the Republic of Serbia , is a landlocked country located at the crossroads of Central and Southeast Europe, covering the southern part of the Carpathian basin and the central part of the Balkans...

, heard about the plot and gave instructions for the three men to be arrested. However, his orders were not implemented and the three man arrived in Bosnia-Herzegovina where they joined forces with fellow conspirators, Danilo Ilić

Danilo Ilic

Danilo Ilić was born in Bosnia and Herzegovina in 1891 and died in 1915. He attended the State Teachers' College in Sarajevo and for a while taught at a school in Bosnia. In 1913 Ilic moved to Belgrade where he became a journalist and a member of the Black Hand secret society.Ilic returned to...

, Vaso Čubrilović, Gavrillo Princep, Miško Jovanović and Veljko Čubrilović

Veljko Cubrilovic

Veljko Čubrilović was involved in the assassination of Archduke Franz Ferdinand of Austria.He was born in Bosnia and Herzegovina. He became a schoolteacher in Priboj Majevicki, but in 1914, as a member of the Black Hand secret society, agreed to help Gavrilo Princip, Nedjelko Cabrinovic, and...

.

On Sunday, 28 June 1914, Franz Ferdinand and Sophie von Chotek

Sophie, Duchess of Hohenberg

Sophie, Duchess of Hohenberg ; 1 March 1868 – 28 June 1914) was a Czech aristocrat, the morganatic wife of Archduke Franz Ferdinand of Austria. Their assassination sparked World War I.- Early life :...

 were assassinated

Assassination of Archduke Franz Ferdinand of Austria

On 28 June 1914, Archduke Franz Ferdinand of Austria, heir presumptive to the Austro-Hungarian throne, and his wife, Sophie, Duchess of Hohenberg, were shot dead in Sarajevo, by Gavrilo Princip, one of a group of six Bosnian Serb assassins coordinated by Danilo Ilić...

 by Gavrilo Princip

Gavrilo Princip

Gavrilo Princip was the Bosnian Serb who assassinated Archduke Franz Ferdinand of Austria and his wife, Sophie, Duchess of Hohenberg, in Sarajevo on 28 June 1914...

. Princip and Nedjelko Čabrinović were captured and interrogated by the police. They eventually gave the names of their fellow conspirators. Muhamed Mehmedbašić

Muhamed Mehmedbašic

Muhamed Mehmedbašić was a Bosniak/Muslim revolutionary and participant in the assassination of Archduke Franz Ferdinand of Austria.-Background:...

 managed to escape to Serbia but Popović, Danilo Ilić, Vaso Čubrilović, Veljko Čubrilović and Miško Jovanović were arrested and charged with treason and murder.

All the men were found guilty. Under Austro-Hungarian law, an offender under twenty could not be executed. Nedjelko Čabrinović, Gavrilo Princip and Trifko Grabež therefore received the maximum penalty of twenty years, whereas Vaso Čubrilović were sentenced to 16 years and Popović to 13 years prison at Terezín

Terezín

Terezín is the name of a former military fortress and adjacent walled garrison town in the Ústí nad Labem Region of the Czech Republic.-Early history:...

.

Popović was released when the Allies

Allies of World War I

The Entente Powers were the countries at war with the Central Powers during World War I. The members of the Triple Entente were the United Kingdom, France, and the Russian Empire; Italy entered the war on their side in 1915...

 defeated the Central Powers

Central Powers

The Central Powers were one of the two warring factions in World War I , composed of the German Empire, the Austro-Hungarian Empire, the Ottoman Empire, and the Kingdom of Bulgaria...

 in November 1918. He returned to teaching and eventually became Curator of the Ethnographic Department of the Sarajevo Museum

National Museum of Bosnia and Herzegovina

The National Museum of Bosnia and Herzegovina is located in central Sarajevo, the capital of Bosnia and Herzegovina. It was established in 1888, having originally been conceived around 1850...

.