Eusebius of Nicomedia
Christian bishop
Years: 270 - 341
Eusebius of Nicomedia (died 341) is the man who baptised Constantine.
He was a bishop of Berytus (modern-day Beirut) in Phoenicia, then of Nicomedia where the imperial court resides in Bithynia, and finally of Constantinople from 338 up to his death.
