Question: Slobodan Princip, nicknamed Seljo (Сељо), was a Yugoslav Partisan fighter and the district staff chief of Partisan Sarajevo Oblast during World War II, he was the nephew of Gavrilo Princip, was a Bosnian Serb member of Young Bosnia, a Yugoslavist organization seeking an end to Austro-Hungarian rule in Bosnia and which location?
Sentence (from "Gavrilo Princip"): Princip was a Yugoslav nationalist associated with the movement Mlada Bosna (Young Bosnia) which predominantly consisted of Serbs, but also Bosniaks and Croats.
Relevant evidence: No