Penitential of Cummean

485, written in the ninth century in Irish-influenced Lorsch Abbey (in modern-day Germany), and Codex Vat.

485 was written in Lorsch, J. Zettinger believed that the book was compiled about the middle of the seventh century in either Scotland or Ireland.

Cummean Fada, who lived about 592-662 A.D., was the son of King Fiachna of West Munster, and founded the monastery of Kilcummin.

The penitential follows the scheme of vices set up by John Cassian (c. 360 – 435) in his De institutis coenobiorum.

[3] A preface includes a homily on the "twelve remissions of sins", based on early patristic sources.