Irenaeus

Irenaeus, St., pupil of Polycarp and Papias, was presbyter, and, later on, Bishop of Lyons, at the end of the 2nd century. His opposition to heretics was very violent. Of his works, the first book of the Libri I", adversus Haereses only remains in the original Greek; the rest are translations. He suffered martyrdom (after 202) in the persecution under Septimius Severus, and was canonised, his day being April 6th.