Which a Bosnian Serb who was involved in the assassination of an Archduke of Austria-Este?
Veljko Čubrilović Veljko Čubrilović (Serbian Cyrillic: Вељко Чубриловић; 6 June 1886 – 3 February 1915) was a Bosnian Serb who was involved in the assassination of Archduke Franz Ferdinand of Austria.
Stephen Ostojić of Bosnia Stephen Ostojić (/Стјепан Остојић) was King of Bosnia from the death of his father Ostoja in 1418 until his deposition by the nobility in 1420.