In reference to the theological question the council was divided in the beginning into three parties.
1327
The orthodox party, which held firmly to the deity of Christ, was at first in the minority, but in talent and influence the more weighty. At the head of it stood the bishop (or “pope”) Alexander of Alexandria, Eustathius of Antioch, Macarius of Jerusalem, Marcellus of Ancyra, Rosins of Cordova (the court bishop), and above all the Alexandrian archdeacon, Athanasius, who, though small and young, and, according to later practice not admissible to a voice or a seat in a council, evinced more zeal and insight than all, and gave promise already of being the future head of the orthodox party.
The Arians or Eusebians numbered perhaps twenty bishops, under the lead of the influential bishop Eusebius of Nicemedia (afterwards of Constantinople), who was allied with the imperial family, and of the presbyter Arius, who attended at the command of the emperor, and was often called upon to set forth his views.
1328 To these also belonged Theognis of Nicaea, Maris of Chalcedon, and Menophantus of Ephesus; embracing in this remarkable way the bishops of the several seats of the orthodox ecumenical councils.
The majority, whose organ was the renowned historian Eusebius of Caesarea, took middle ground between the right and the left, but bore nearer the right, and finally went over to that side. Many of them had an orthodox instinct, but little discernment; others were disciples of Origen, or preferred simple biblical expression to a scholastic terminology; others had no firm convictions, but only uncertain opinions, and were therefore easily swayed by the arguments of the stronger party or by mere external considerations.