Eusebius (263-339 AD) was a Christian exegete, historian and polemicist. Eusebius may also refer to: Eusebius of Laodicea (died 268), bishop of Laodicea. Pope Eusebius (died 310), Pope in 309 or 310. Eusebius of Nicomedia (died 341), bishop of Berytus, Nicomedia and Constantinople, leader of Arianism. Eusebius (consul 347) (died c. 350), Roman consul in 347. Saint Eusebius of Rome (died 357), priest and martyr. Eusebius (consul 359), Roman consul in 359. Eusebius of Emesa (300–360), bishop of Emesa.
https://en.wikipedia.org/wiki/Eusebius_(disambiguation)