Which 4th-century bishop of Alexandria was exiled multiple times for opposing Arianism?

Which 4th-century bishop of Alexandria was exiled multiple times for opposing Arianism? Athanasius of Alexandria was.

Athanasius became bishop of Alexandria in 328 and spent much of his episcopate defending the Nicene position that the Son is fully divine. His principal opponent was Arianism, the teaching associated with Arius that treated the Son as a created being rather than co-eternal with the Father.

Imperial politics repeatedly turned the theological dispute into a personal crisis. Athanasius was deposed by opponents at the Synod of Tyre in 335 and exiled to Trier. He later faced further banishments under Constantius II, Julian, and Valens. In total, he spent more than 17 years in five exiles ordered by four Roman emperors.

The nickname “Athanasius contra mundum” means “Athanasius against the world,” although the slogan is a later summary rather than his own description. He was not the only defender of Nicene Christianity, but his persistence and writings made him a central figure in the eventual triumph of Nicene doctrine. He died in Alexandria in 373.