He cites native poems which declared that the Inguaeones, Hermiones and Istaeuones - the three main branches of the Germani (see below) - were sprung from three sons of a certain Mannus (perhaps " Man "), who was himself the son of the god Tuisto the son of Earth; and in a Frankish document at least four centuries later we hear again of three brothers named Erminus, Inguo and Istio, from whom many nations were descended.
What exactly the grouping into Inguaeones, Hermiones and Istaeuones was based upon can only be conjectured, though probably its origin is to be sought rather in religion than in political union.
The Inguaeones again are defined as being " next to the ocean "; but the name can be traced only in Denmark and Sweden, where we find the eponymous hero Ing and the god Yngvi (Frey) respectively.
Ing, who is connected with Denmark in Anglo-Saxon tradition, was in all probability the eponymous ancestor of the Inguaeones (see above).
The relationship of Ing to the Inguaeones is paralleled by that of Irmin to the Hermiones (see above).