Roman Martyrology-June 28th- on this date in various years-
The vigil of the holy apostles Peter and Paul.
At Lyons in France, St. Irenaeus, bishop and martyr. St. Jerome relates that he was the disciple of blessed Polycarp, bishop of Smyrna, and lived near the time of the apostles. After having strenuously opposed the heretics by word and by writing, he was crowned with a glorious martyrdom along with almost all the people of his city, during the persecution of Severus.
At Utrecht, St. Benignus, bishop and martyr.
At Alexandria, in the persecution of Severus, the holy martyrs Plutarch, Serenus, Heraclides, catechumen, Heron, a neophyte, another Serenus, Rhais, a catechumen, Potamioena and Marcella her mother. Among them the virgin Potamioena is particularly distinguished. She first endured many painful trials for the preservation of her virginity, and then cruel and unheard-of torments for the faith, after which both she and her mother were consumed with fire.
Also during the persecution of Diocletian, St. Papius, martyr, who was scourged with knotted cords, cast into a cauldron of seething oil and grease, and after other horrible torments was beheaded, and thus won an eternal crown.
At Cordova in Spain, St. Argymirus, monk and martyr, who was slain for the faith of Christ during the persecution of the Arabs.
At Rome, Pope St. Paul I, confessor.
At Lovere, in the diocese of Bergamo, St. Vincenza Gerosa, virgin, who co-founded the Institute of the Sisters of Charity with St. Bartolomea Capitanio, and whom Pope Pius XII added to the list of holy virgins.
And elsewhere in divers places, many other holy martyrs, confessors, and holy virgins.
R. Thanks be to God.