According to the Royal Blog:
Serbia will hold a State Funeral for King Petar II, the last reigning monarch of Yugoslavia on Sunday May 26, Crown Prince Aleksandar II announced on Thursday. The king will be laid to rest in the Royal Family’s Mausoleum in St George’s Church in Oplenac.
Crown Prince Aleksandar, godson of Queen Elizabeth II, has been working towards the return of his father’s remains and the State Funeral for over a decade. …The communist regime under Marshall Josip Tito abolished the monarchy at the end of the war – Petar and his son Aleksandar were declared enemies of the state.
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