St George’s Church (Serbian: Црква Св. Ђорђа) also known as Oplenac (Опленац), is the mausoleum of the Serbian and Yugoslavroyal house of Karađorđević located on top of the Oplenac Hill in the town of Topola, Serbia. The church of Oplenac was founded by King Peter I of Yugoslavia. Many members of the royal house are buried in the church, in the crypt beneath the church, or in the church yard.

Apart from the two tombs inside the church (Karađorđe’s in the southern apse; and Peter I in the northern apse), there are 26 other members of the dynasty whose eternal place of rest is in this mausoleum. Six generations of the Karađorđević family have been buried in this church:

1. The first generation: Marica Živković, Karađorđe’s mother.
2. The second generation: Karađorđe (in the church) and his wife Jelena Jovanović (1764–1842).
3. The third generation: Karađorđe’s son Alexander and his wife Persida Nenadović (1813–1873).
4. The fourth generation: Alexander and Persida’s nine children. As follows: Kleopatra (1835-1855), Aleksije (1836-1840), Svetozar (1841-1847), Jelena (1846–1867), Andreja (1848–1864), Jelisaveta (1851–1852), Dorde (1856–1888), Arsen, and Peter I (in the church) and his wife Ljubica also known as Zorka (she is buried in the crypt). Out of the ten children of Prince Alexander and Princess Persida, only their oldest daughter, Poleksija (1833–1914), was not buried here.
5. The fifth generation, Peter I and Zorka’s children: Milena (1886–1887), George and his wife Radmila Radonjić (1907–1993), Alexander I and his wife Maria and Andrija (1890–1890, lived only for 23 days). And also Prince Arsen’s son Paul and his wife Olga.
6. The sixth generation: King Alexander I and Queen Maria’s children: Peter II and his wife Alexandra, Tomislav, and Andrew. And also Prince Paul‘s sons Nikola and Alexander.
7. Out of the 28 tombs of the Karađorđević dynasty, six of them belong to rulers: Supreme Leader Karađorđe, Prince Alexander, King Peter I, King Aleksandar I, Prince Paul, and King Peter II. It is an important place of Serbian history. On 6 October 2012, Prince Paul, his wife Olga and his son Nikola were all buried here after their remains were exhumed from the cemetery in Lausanne, and returned to Serbia.
8. On 26 May 2013, Queen Maria, her sons King Peter II and Prince Andrew, and Peter II’s wife Alexandra, were all buried here after their remains were exhumed from Frogmore in Britain, the Saint Sava Monastery in Libertyville, Illinois, the cemetery of New Gračanica, also in Illinois, and Tatoi Palace in Greece respectively, and returned to Serbia
9. The Serbian Royal family & The Oplenac Mausoleum