ACHILLAS (St.) Bp. (Nov. 7) (4th cent.) The Patriarch of Alexandria who succeeded St. Peter the Martyr. Deceived by the hypocrisy of the afterwards notorious heretic Arius, he ordained him priest. Two years later (A.D. 313) St. Achillas passed away, reverenced by all for his many virtues, and had for his successor St. Alexander, who was followed by the great St. Athanasius.