Theognis of Nicaea
Encyclopedia
Theognis of Nicaea was a 4th century bishop, excommunicated after the First Council of Nicaea
for not denouncing Arius
and his nontrinitarianism
strongly enough.
First Council of Nicaea
The First Council of Nicaea was a council of Christian bishops convened in Nicaea in Bithynia by the Roman Emperor Constantine I in AD 325...
for not denouncing Arius
Arius
Arius was a Christian presbyter in Alexandria, Egypt of Libyan origins. His teachings about the nature of the Godhead, which emphasized the Father's divinity over the Son , and his opposition to the Athanasian or Trinitarian Christology, made him a controversial figure in the First Council of...
and his nontrinitarianism
Nontrinitarianism
Nontrinitarianism includes all Christian belief systems that disagree with the doctrine of the Trinity, namely, the teaching that God is three distinct hypostases and yet co-eternal, co-equal, and indivisibly united in one essence or ousia...
strongly enough.