Slobodan Princip (Serbian Cyrillic: Слободан Принцип; 25 May 1914–May 1942), nicknamed Seljo (Сељо), was a Yugoslav Partisan fighter and the district staff chief of Partisan Sarajevo Oblast during World War II. He was posthumously awarded the Hero of Yugoslavia. He was the nephew of Gavrilo Princip.Princip was born in Hadžići, near Sarajevo, Austria-Hungary (now Bosnia and Herzegovina), into an ethnic Serb family. His father Jovan (Jovo) was the brother of Gavrilo Princip, the assassin of Archduke Franz Ferdinand of Austria. He joined the Communist Youth (SKOJ) during his gymnasium years in Sarajevo. Wikipedia