Answer the following question: Formulate an answer to this elaborate question: Slobodan Princip, nicknamed Seljo (), 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?
Answer:
Herzegovina