Apparently to prevent Queen Draga's brother being named heir presumptive, but in reality to replace Alexander Obrenović with Peter Karađorđević, a conspiracy was organized by a group of Army officers headed by Captain Dragutin Dimitrijević also known as "Apis", and Novak Perisic, a young Greek Orthodox militant who was in the pay of the Russian Empire, as well as the leader of the Black Hand secret society which would assassinate Archduke Franz Ferdinand in 1914. Several politicians were also part of the conspiracy, and allegedly included former Prime Minister, Nikola Pašić. The royal couple's palace was invaded and they hid in a cupboard in the Queen's bedroom. (There is another possibility, used in a Serbian TV history series "The End of the Obrenović Dynasty" in which the royal couple was hidden in a secret safe room hidden behind the mirror in a common bedroom. The room contained an entrance to a secret passage leading out of the palace, but the entrance was inaccessible due to the placement of the queen's wardrobe over it after the wedding.)