An abbot of San Vincenzo al Volturno in South Italy in the time of Desiderius, king of the Lombards, Autpert wrote a considerable number of works on the Bible and religious subjects generally.
[1] Jean Mabillon calls him "sanctissimus" because of his great virtue and the Bollandists gave him the title "saint".
Information about his life is available primarily from the fragmentary Chronicon Vulturnense written by a monk named John, and from brief autobiographical references in some of his own writings.
This is apparently an error due to the confusion of Autpert with a certain Aspertus or Asbertus, who was chancellor of Prince Arnolfus from 888 to 892.
[4] Autpert's most famous work is his lengthy Expositio in Apocalypsin which is dependent upon a variety of patristic authors whom Autpert explicitly acknowledges, including Jerome, Victorinus, Ticonius, Augustine of Hippo, Primasius of Hadrumetum, and Gregory the Great.
His Vita sanctorum patrum Paldonis, Tatonis et Tasonis is an account of the three founders of the monastery at Volturno who through their pious lives offer an example of the imitation of Christ.
His Libellus de conflictu vitiorum atque virtutum emphasizes monastic themes such as fear of God, obedience, and fidelity.
The reason for this possible attribution is that Mary plays a significant theological role in both his sermons and Apocalypse commentary.
Autpert's masterpiece is considered his Expositio in Apocalypsin, a lengthy commentary on the Book of Revelation.
Although he is very careful not to depart from the tradition of the Church or from orthodox teaching, his work is no mere string of patristic quotations.