Jonas of Bobbio was an Italian monk, author, and abbot, active in Lombard Italy and Merovingian Gaul during the seventh century. He is best known as the author of the Life of Columbanus and His Disciples, one of the most important works of hagiography from the early medieval period, that charts the remarkable journey of the Irish exile and monastic founder, Columbanus (d. 615), through Western Europe, as well as the monastic movement initiated by...