My great great grandfather was Petar Sunaric, a Serb who migrated to and settled in Vlasenica (in present day Bosnian Serb republic) in the mid 1800's from the nearby town of Foca (pron. Focha). Apparently, his predecessors had migrated to Foca from either the Zabljak region or the Boka Kotorska region of Montenegro (Crna Gora) in the early 1800's or late 1700's. These predecessors had been gunsmiths there and went by the surname of Sunar. I have a detailed family history from Petar onward but I am trying to find the links between him and the old Sunar family. It is likely that his parents were buried in Foca, but I do not know their names. Any information would be greatly appreciated.