Catholic Encyclopedia (1913)/St. Alypius
The bosom friend of St. Augustine, though younger than he, was, after studying under Augustine at Milan, conspicuous at first as a magistrate in Rome. He abandoned that honour to follow his master into the Church. It is noteworthy that there is no mention of him as a saint in the ancient catalogues. His name was placed in the Roman Martyrology by Gregory XIII, in 1584, the evidence of his sanctity being sufficiently clear from the account of his life by St. Augustine. His conversion began when Augustine was still a Manichaean, and occurred in consequence of a discussion about the folly of those who give way to sensual indulgence. A relapse occurred subsequently, when he was dragged by some friends to witness the savage games of the arena; but the final step was taken when, in company with Augustine, in obedience to the voice, Tolle, lege, he read the text of St. Paul, Non in commessationibus, etc. They were both baptized by St. Ambrose, at Milan. After living for some time with Augustine, in the monastery of Hippo, he was made Bishop of Tagaste. This was in the year 394, and took place after his return from the Holy Land, where he had seen St. Jerome. Under his guidance Tagaste reproduced the sanctity, learning, monastic exactness, and orthodoxy of Hippo. The exact date of his death is not known, but his festival is kept on 15 August.