The 14-year-old emperor brought his solar-mountain deity from his native Emesa to Rome and into official imperial cult. In Syria, the cult of Elagabalus was popular and well established. In Rome, it was a foreign and (according to some ancient sources) disgusting Eastern novelty. In 220 AD, the priest Elagabalus replaced Jupiter with the god Elagabalus as "sol invictus" (the unconquered Sun) and thereafter neglected his Imperial role as "pontifex maximus". According to Marius Maximus, he ruled from his degenerate "domus" through prefects who included among others a charioteer, a locksmith, a barber, and a cook. At the very least, he appears to have been regarded as an unacceptably effete eccentric by the Senate and military alike. He was assassinated by the Praetorians at the age of 18, subjected to the fullest indignities of "damnatio memoriae" and replaced with his young cousin Alexander Severus, the last of his dynasty, who reigned for 13 years until killed in a mutiny.