Apollonius a Roman senator, against whom one of his slaves, called Severus, preferred an accusation of holding the Christian faith, in the time of Commodus, about the year 183 or 186. When cited before the senate to defend himself, he delivered an admirable discourse on the faith, and was condemned to be beheaded. He is commemorated in the Roman Church on the 18th of April.
His acts are in Ruinart, p. 83, 84. — Eusebius, Ch. Hist. 5, 21; Landon, Eccl. Dict. 1, 452.