Petronius
Martyrological notice
The historical Roman Martyrology commemorates Petronius on 4 October. The Latin notice identifies the record as bishop and confessor. The source places the commemoration at Bononiae.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Bononiae sancti Petronii, Episcopi et Confessoris; qui doctrina, miraculis et sanctitate claruit.