Potamon
Martyrological notice
In Egypt, of St. Potamon, bishop, who being first a confessor, under Maximian Galerius, was after in the time of Constantius, emperor, by Philagrius, the Arian president, crowned with martyrdom.
Martyrologium Romanum · Latin witness
Heracleae, in Aegypto, sancti Potamonis Episcopi, qui primum, sub Maximiano Galerio, Confessor fuit; deinde, sub Constantio Imperatore et Ariano Praeside Philagrio, martyrio coronatus est. Ipsum vero beatum virum sancti Ecclesiae Patres Athanasius et Epiphanius suis laudibus celebrarunt.