Eusebius of Nicomedia(redirected from Patriarch Eusebius of Nicomedia)
Eusebius of Nicomedia(yo͞osē`bēəs, nĭkōmē`dēə), d. 342, Christian churchman and theologian, leader of the heresy of 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. . He was bishop of Nicomedia (330–39) and patriarch of Constantinople (339–42); Eusebius was powerful because of his influence with Roman Emperor Constantine I and particularly with the emperor's son, Constantius II. He sheltered Arius in 321 and fought his condemnation at Nicaea (see Nicaea, First Council ofNicaea, First Council of,
325, 1st ecumenical council, convened by Roman Emperor Constantine the Great to solve the problems raised by Arianism. It has been said that 318 persons attended, but a more likely number is 225, including every Eastern bishop of importance, four
..... Click the link for more information. ). Eusebius signed the Nicene formulary but was exiled by Constantine shortly afterward. Eusebius' influence on the emperor's sister Constantia, however, soon won him his reprieve (328). As adviser to Constantius, a committed Arian, he systematically advanced a moderate Arianism throughout the empire.
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