Proper noun
The deity Elagabal, venerated in ancient times at Emesa in Syria (and later elsewhere in the Roman Empire), identified with a large black stone.
The Roman emperor Marcus Aurelius Antoninus Augustus (reigned 218–222), noted for eccentricity, femininity, decadence, and disregard for Roman religious traditions and sexual taboos.
Source: en.wiktionary.orgThrust upon the throne, Elagabalus lacked the required discipline. For a while, Romans may well have been amused by his "Merrie Monarch" behavior, but he ended up offending those he needed to inspire. Elagabalus
Amidst growing opposition, Elagabalus, just 18 years old, was assassinated and replaced by his cousin Severus Alexander on 11 March 222, in a plot formulated by his grandmother, Julia Maesa, and carried out by disaffected members of the Praetorian Guard. Source: Internet
Almost upon arrival in Syria, Maesa began a plot with her advisor and Elagabalus' tutor Gannys, to overthrow Macrinus and elevate the fourteen-year-old Elagabalus to the imperial throne. Source: Internet
Elagabalus was supposedly "married" as many as five times, lavished favours on male courtiers popularly thought to have been his lovers, citation citation and was reported to have prostituted himself in the imperial palace. Source: Internet
Elagabalus' vices were "too disgusting even to allude to them". Source: Internet
Canduci, pg. 60 Thus, to preserve her own position, she had Elagabalus adopt the young Alexander and then arranged for his assassination, securing the throne for Alexander. Source: Internet