SAINT LEO I
Pope, Confessor, and Doctor of the Church

DOUBLE / WHITE
Pope Leo I (440-461) governed the Church when it was being attacked from within by heretics (Nestorians and Monophysites) and from without by the northern barbarians. By his fearless holiness and learning, Pope Leo overcame the heretics. He stopped the advance of Attila, "the scourge of God," at the very gates of Rome. He attributed all the fruits of his great labors to St. Peter, the glorious Prince of the Apostles. St. Peter, he often declared, lives and governs in Peter's successors.

Mass of a POPE

COLLECT
Look forgivingly on Thy flock, Eternal Shepherd, and keep it in Thy constant protection, by the intercession of blessed Leo Thy Sovereign Pontiff, whom Thou didst constitute Shepherd of the whole Church. Through our Lord, Jesus Christ . . .