Piatonis
Martyrological notice
The historical Roman Martyrology commemorates Piatonis on 1 October. The Latin notice identifies the record as martyr and priest. The source places the commemoration at Tornaci.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Tornaci sancti Piatonis Presbyteri et Martyris, qui cum beato Quinctino ejusque Sociis ab urbe Roma in Galliam praedicationis causa perrexit, ac postea in persecutione Maximiani consummato martyrio migravit ad Dominum.