The Ingaevones and the Istvaeones tribal groups were what kind of group?
Istvaeones: The Istvaeones, also called Istaevones, Istriaones, Istriones, Sthraones, and Thracones, are mentioned as a Germanic tribal grouping in the writings of Tacitus and Pliny the Elder (~1st century AD). Ingaevones: The Ingaevones or North Sea Germanic peoples were a West Germanic cultural group living along the North Sea coast in the areas of Jutland, Holstein, Frisia and the Danish islands, where they had by the 1st century BCE become further differentiated to a foreigner's eye into the Frisii, Saxons, Jutes and Angles.
Germanic