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Aetius(āē`shēəs), d. 367, Syrian theologian. He became prominent (c.350) as an exponent of the extreme ArianismArianism
, Christian heresy founded by Arius in the 4th cent. It was one of the most widespread and divisive heresies in the history of Christianity. As a priest in Alexandria, Arius taught (c.
..... Click the link for more information. developed mainly by his secretary EunomiusEunomius
, c.A.D. 333–A.D. 393?, bishop of Cyzicus (c.361), founder of the Eunomian heresy. He was a disciple and secretary of Aetius whose extreme Arianism he adopted. His followers were called Eunomians or Anomoeans [Gr.
..... Click the link for more information. . Members of his party were called Aetians and Anomoeans.
Aetius,c.396–454, Roman general. At first unfriendly to Valentinian IIIValentinian III,
419–55, Roman emperor of the West (425–55). Two years after the death of his uncle, Honorius, he was placed on the throne by his cousin Theodosius II, who deposed the usurper John.
..... Click the link for more information. , he later made his peace with Valentinian's mother, Galla PlacidiaGalla Placidia
, c.388–450, Roman empress of the West, daughter of Theodosius I. Captured by Alaric I in the course of his Italian campaign, she was held by the Visigoths as a hostage and married (414) Alaric's successor Ataulf.
..... Click the link for more information. , and was given a command in Gaul. An ambitious general, he was embroiled in difficulties with his rival BonifaceBoniface
, d. 432, Roman general. He defended (413) Marseilles against the Visigoths under Ataulf. Having supported Galla Placidia in her struggle with her brother, Emperor Honorius, Boniface fled to Africa in 422.
..... Click the link for more information. , who defeated him near Rimini in 432. Aetius went briefly into exile among the Huns but returned in 433 and rose to be the chief ruler of the Western Empire. He defeated the Germans in Gaul, then crowned his career by commanding (451) Roman and Visigothic troops in the repulse of Attila and the Huns in the battle near the modern Châlons-en-Champagne—a battle generally said to have saved the West. Valentinian, presumably jealous of Aetius' success, had him murdered.