So let me see if I’ve got all this right. Athanasius was from Alexandria, but exiled to Gaul. Hillary was from Gaul but exiled to Asia Minor. And they both were able to return home.
Furthermore, Alexandria was closely allied with Rome, with Athanasius often fleeing there for help from both Emperor and bishop.
Ossius of Cordoba was a Spaniard who became a close counselor of Constantine and was thus able to preside at Nicaea, supporting the final creed.
Marcellus of Ancrya was an influential Eastern bishop who supported Athanasius and defended the homoousious.
Of course Ossius later turned on Athansius, condemning him of Sabellianism, while Marcellus actually was a Sabellian, and Athansius had to distance himself from him, though he never condemned him as forcefully as Basil of Caeserea would have liked.
Hillary becomes more Athanasian, influencing Ambrose (with some help from Eusebius V.), who in turn influenced Augustine.
And all the while the Eastern bishops are anathematizing Athanasius and all who support him, including the bishop of Rome, and the Western bishops are anathematizing anyone who doesn’t support homoousious. Both parties are burning down baptisteries, hiring Jews to desecrate altars, hiring prostitutes to seduce bishops, and killing people.
Does that sound about right?