Eusebius
Martyrological notice
The historical Roman Martyrology commemorates Eusebius on 21 June. The Latin notice identifies the record as bishop. The source places the commemoration at Eodem die.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Eodem die sancti Eusebii, Samosateni Episcopi; qui, tempore Constantii, Imperatoris Ariani, sub habitu militari incognitus Ecclesias Dei visitabat, ut in fide catholica illas confirmaret. Deinde, sub Valente, in Thraciam relegatur; sed, reddita pace Ecclesiae, tempore Theodosii, ab exsilio revocatus, tandem, cum iterum Ecclesias visitaret, ei caput, tegula per mulierem Arianam desuper immissa, confractum est, sicque Martyr occubuit.