Maesa spread a rumor, which Soaemias publicly supported, that Elagabalus was the illegitimate child of Caracalla and so deserved the loyalty of Roman soldiers and senators who had sworn allegiance to Caracalla. The soldiers of the Third Legion Gallica at Raphana, who had enjoyed greater privileges under Caracalla and resented Macrinus (and may have been impressed or bribed by Maesa's wealth), supported this claim. At sunrise on 16 May 218, Elagabalus was declared emperor by Publius Valerius Comazon, commander of the legion. To strengthen his legitimacy, Elagabalus adopted the same name Caracalla bore as emperor, Marcus Aurelius Antoninus. Cassius Dio states that some officers tried to keep the soldiers loyal to Macrinus, but they were unsuccessful.
