A Dictionary of Greek and Roman biography and mythology

a son of Tuisco, was regarded by the ancient Germans, along with his father, to have been the founders of their race. They further ascribed to Mannus three sons, from whom the three tribes of the Ingaevones, Hermiones, and Istaevones derived their names. (Tac. Germ. 2.) Others, however, represented Mannus, who was worshipped as a god, as the father of more than three sons. Mannus is perhaps the same being as Irmin who is mentioned by other authors among the German gods (Witechind of Corv. i.; J. Grimm, Irmenstrasse und Irmensaiie, p. 41), and seems to have been a kind of German Mars; though some believe that Irmin was the deified Arminius. It is not impossible that in later times Irmin and Arminius may have become identified in the imagination of the people.

[L.S]