Severus' father, an obscure provincial, held no major political status, but he had two cousins, Publius Septimius Aper and Gaius Septimius Severus, who served as consuls under the emperor Antoninus Pius . His mother's ancestors had moved from Italy to North Africa; they belonged to the "gens" Fulvia, an Italian patrician family that originated in Tusculum. Septimius Severus had two siblings: an elder brother, Publius Septimius Geta; and a younger sister, Septimia Octavilla. Severus's maternal cousin was the praetorian prefect and consul Gaius Fulvius Plautianus.