Konopiště is a château (castle) locate in the Czech Republic, about 50 km southeast of Prague, outside the city of Benešov. It has become famous as the last residence of Archduke Franz Ferdinand of Austria, heir of the Austro-Hungarian throne, whose assassination in Sarajevo triggered World War I. The bullet that killed him, fired by Gavrilo Princip, is now an exhibit at the castle's museum.