Zenonis
Martyrological notice
The historical Roman Martyrology commemorates Zenonis on 22 December. The source places the commemoration at Nicomediae.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Nicomediae sancti Zenonis militis, qui, cum Diocletianum Cereri immolantem derisisset, propterea, maxillis confractis dentibusque excussis, capite truncatus est.