According to the acts of the martyrdom of St. Afra, who with her handmaids suffered at the stake for Christ, there existed in Augsburg early in the fourth century a Christian community under Bishop Narcissus.

[3] Nothing authentic is known about the history of the Augsburg Church during the centuries immediately succeeding, but it survived the collapse of Roman power in Germany and the turbulence of the great migrations.

Saint Simpert (c. 810), hitherto abbot of Murbach, and a relative of Charlemagne, renovated many churches and monasteries laid waste in the wars of the Franks and Bavarians, and during the incursions of the Avari; he built the first cathedral of Augsburg in honour of the Virgin Mary; and obtained from the Emperor Charlemagne an exact definition of his diocesan limits.

Ignatius Albert von Riegg (1824–36) was successful in his endeavors to raise the standard of popular education through the medium of numerous ordinances and frequent visitations.

He assigned the administration and direction of studies in the Lyceum to the monks of the Benedictine Abbey of St. Stephen in Augsburg, founded by King Ludwig I of Bavaria (1834).