Áengus — Mac Nisse — Caemán Brecc: The Saint of the "Ordo Sanctissumus" in Hagiography from the Seventh to the Twelfth Century

This article explores the figure of Saint Mac Nisse, a legendary companion of Saint Patrick, within the context of early medieval hagiographical tradition. Particular focus is given to his genealogical origins and his depiction in the Tripartite Life of Saint Patrick, where he emerges as a paradigmatic saint of elevated sanctity. The study includes an annotated translation of a late Latin vita of Mac Nisse, which, to date, has not been rendered into any modern language. The translation and commentary offer new insights into the construction of sanctity, ecclesiastical memory, and textual transmission in early Irish Christianity.