He was a native of Caesarea, in Numidia, and began his fortune by serving in the household of Plautian, from whose ruin he narrowly escaped. His enemies asserted that he was born a slave, and had exercised, among other infamous professions that of gladiator. The fashion of aspersing the birth and condition of an adversary, seems to have lasted from the time of the Greek orators to the learned grammarians of the last age.