Theognis of Nicaea ( grc-gre, Θέογνις) was a 4th-century

Bishop of Nicaea The Metropolis of Nicaea ( el, Μητρόπολις Νικαίας), was an ecclesiastical province (since the mid-4th century a metropolitan bishopric) of the Patriarchate of Constantinople in the city of Nicaea in the province of Bithynia (now ...

excommunicated Excommunication is an institutional act of religious censure used to end or at least regulate the communion of a member of a congregation with other members of the religious institution who are in normal communion with each other. The purpose ...

after the

First Council of Nicaea The First Council of Nicaea (; grc, Νίκαια ) was a council of Christian bishops convened in the Bithynian city of Nicaea (now İznik, Turkey) by the Roman Emperor Constantine I in AD 325. This ecumenical council was the first effort ...

for not denouncing

Arius Arius (; grc-koi, Ἄρειος, ; 250 or 256 – 336) was a Cyrenaic presbyter, ascetic, and priest best known for the doctrine of Arianism. His teachings about the nature of the Godhead in Christianity, which emphasized God the Father's un ...

and his

nontrinitarianism Nontrinitarianism is a form of Christianity that rejects the mainstream Christian doctrine of the Trinity—the belief that God is three distinct hypostases or persons who are coeternal, coequal, and indivisibly united in one being, or essenc ...

strongly enough. He is best known to

history History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the History of writing#Inventions of writing, invention of writing systems is considered prehistory. "History" is an umbr ...

as an attendee present at the Council of Nicaea in 325. He was one of the

Arian Arianism ( grc-x-koine, Ἀρειανισμός, ) is a Christological doctrine first attributed to Arius (), a Christian presbyter from Alexandria, Egypt. Arian theology holds that Jesus Christ is the Son of God, who was begotten by God t ...

Bishops A bishop is an ordained clergy member who is entrusted with a position of authority and oversight in a religious institution. In Christianity, bishops are normally responsible for the governance of dioceses. The role or office of bishop is ca ...

at that Council. He eventually signed the

Nicean Creed The original Nicene Creed (; grc-gre, Σύμβολον τῆς Νικαίας; la, Symbolum Nicaenum) was first adopted at the First Council of Nicaea in 325. In 381, it was amended at the First Council of Constantinople. The amended form is ...

with the other Arian supporters, Zopyrus (Bishop of Barca),

Eusebius of Nicomedia Eusebius of Nicomedia (; grc-gre, Εὐσέβιος; died 341) was an Arian priest who baptized Constantine the Great on his deathbed in 337. A fifth-century legend evolved that Pope Saint Sylvester I was the one to baptize Constantine, but this ...

and Maris of Chalcedon.Charles Freeman, The Closing of the Western Mind: The Rise of Faith and the Fall of Reason, 2002. He was

exile Exile is primarily penal expulsion from one's native country, and secondarily expatriation or prolonged absence from one's homeland under either the compulsion of circumstance or the rigors of some high purpose. Usually persons and peoples suf ...

d with the other three Arian bishops.

References

4th-century bishops in Roman Anatolia Arian bishops Bishops of Nicaea People excommunicated by Christian churches Year of birth unknown {{bishop-stub