Julia Soaemias in the context of "Severan dynasty"

Julia Maesa (7 May before 160 AD – c. 224 AD) was a member of the Severan dynasty of the Roman Empire who was the grandmother of emperors Elagabalus and Severus Alexander, elder sister of empress Julia Domna, and mother of Julia Soaemias and Julia Mamaea. She wielded influence during the reigns of her grandsons as Augusta of the Empire from 218 to her death, especially on their elevation to emperors.

Born in Emesa, Syria (modern day Homs), to an Arab family of priests of the deity Elagabalus, Maesa and her sister Domna were the daughters of Julius Bassianus. Through her sister's marriage, Maesa became sister-in-law to Septimius Severus and aunt of Caracalla and Geta, who all became emperors. She married fellow Syrian Julius Avitus, who was of consular rank. They had two daughters, Soaemias and Mamaea, who became mothers of Elagabalus and Severus Alexander, respectively.

Julius Bassianus (born in the second half of the 2nd century, died 217) was an Arab high priest of Elagabalus at the Temple of the Sun in Emesa, Syria, where this solar deity was worshipped in a shape of a black stone. The name Elagabalus derives from Ilāh (a Semitic word for "god") and gabal (an Arabic word for "mountain"), resulting in "the God of the Mountain," the Emesene manifestation of the deity. Bassianus was a member of the Royal family of Emesa (modern Homs), which was a part of the Arab aristocracy in this client kingdom of the Roman Empire. The beginning of his priesthood is unknown, but by 187 he was a high priest at Emesa. Bassianus was a son of a Julius and his paternal uncle was Julius Agrippa, who served as a Primipilaris (a former leading Centurion).

Future emperor Lucius Septimius Severus had visited Emesa, based on a promising horoscope that he would find his future wife in Syria. Bassianus introduced Severus to his two daughters. Bassianus' wife is unknown. His elder daughter Julia Maesa was married to a Syrian noble Gaius Julius Avitus Alexianus and they had two daughters: Julia Soaemias Bassiana and Julia Avita Mamaea. His younger daughter Julia Domna was not married. Severus and Domna married not so long after. Domna bore Severus two sons, Lucius Septimius Bassianus (Caracalla, 4 April 188-8 April 217) and Publius Septimius Geta (7 March 189-19 December 211). Caracalla and Geta would become future Roman Emperors and heirs to their father. After Caracalla's death, Julia Maesa's grandson became emperor, Elagabalus. She prevailed upon him to adopt another grandson of her, the son of Julia Avita Mamaea, who took the name Alexander Severus. Eventually the latter became emperor himself.