Gregorius
Martyrological notice
The historical Roman Martyrology commemorates Gregorius on 9 March. The Latin notice identifies the record as bishop and virgin. The source places the commemoration at Nyssae.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Nyssae depositio sancti Gregorii Episcopi, qui sanctorum Basilii et Emmeliae filius, et sanctorum item Basilii Magni ac Petri Sebastensis Episcoporum et Macrinae Virginis frater exstitit; atque, vita et eruditione clarissimus, ob fidei catholicae defensionem, sub Ariano Imperatore Valente, civitate sua pulsus est.