Marcellini Tribuni and Mannea Joannes Serapionis and Petrus
Martyrological notice
The historical Roman Martyrology commemorates Marcellini Tribuni and Mannea Joannes Serapionis and Petrus on 27 August. The Latin notice identifies the record as martyr. The source places the commemoration at Tomis, in Ponto.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Tomis, in Ponto, sanctorum Martyrum Marcellini Tribuni, et uxoris Manneae, ac filiorum Joannis, Serapionis et Petri.