Marcus Aurelius Antoninus (born Sextus Varius Avitus Bassianus, c. 204 – 13 March 222), better known by his posthumous nicknames Elagabalus ( EL-ə-GAB-ə-ləs) and Heliogabalus ( HEE-lee-ə-, -lee-oh-), was Roman emperor from 218 to 222, while he was still a teenager. His short reign was notorious for religious controversy and alleged sexual debauchery. A close relative to the Severan dynasty, he came from a prominent Syrian Arab family in Emesa (Homs), Syria, where he served as the head priest of the sun god Elagabal from a young age. After the death of his cousin, the emperor Caracalla, Elagabalus was raised to the Principate at 14 years of age in an army revolt instigated by his grandmother Julia Maesa against Caracalla's short-lived successor, Macrinus. He only posthumously became known by the Latinised name of his god.
Elagabalus is largely known from accounts by the contemporary senator Cassius Dio who was hostile to him, Herodian, who likely relied extensively on Dio, and the much later Historia Augusta. The reliability of the accounts of Cassius Dio and the Historia Augusta, particularly their most salacious elements, has been questioned. Elagabalus showed a disregard for Roman religious traditions. He brought the cult of Elagabal (including the large baetyl stone that represented the god) to Rome, making it a prominent part of religious life in the city. He forced leading members of Rome's government to participate in religious rites celebrating this deity, presiding over them in person. According to the accounts of Cassius Dio and the Augusta, he married four women, including a Vestal Virgin, in addition to lavishing favours on male courtiers they suggested to have been his lovers, and prostituted himself. His behaviour estranged the Praetorian Guard, the Senate, and the common people alike. Amidst growing opposition, at just 18 years of age he was assassinated and replaced by his cousin Severus Alexander in March 222. The assassination plot against Elagabalus was devised by Julia Maesa and carried out by disaffected members of the Praetorian Guard.
