All that we know of other epics tends to show that the fundamental principle, the doctrine that the wanderings and the amalgamating of the myths depend on the wanderings and the amalgamating of the tribes, is erroneous. With this presumption another is connected which, according to my view, is the fundamental error of the method; namely, that two things are identified which must be distinguished--the development of the myths and the development of epic poetry. Moreover, epic poetry is taken into account only to the extent to which it can be reached through an analysis of the extant poems and fragments. It has very often been said that a lost epos of Heracles created the cycle of Heracles, and this may seem not improbable in this case where we do not have the epos but are free to reconstruct it according to our fancy. The attempt to carry through the same idea in regard to the Trojan cycle proved to be a failure and showed the frailty of the principle, for in this case we have the epos and can use it as a control. To take another instance, Professor Wilamowitz contends that the bravery of Diomedes is the oldest song of the Iliad and an imitation of the Thebais. 7 If this is true, it is extremely remarkable that the Theban myths in Homer and Hesiod differ so markedly from the common version. 8 The unavoidable conclusion would be that the Thebais, supposed to be earlier than Homer, has not been able to impress its version either upon Homer or upon Hesiod. Wild shoots of the myth have lived in spite of epical cultivation.
Suggestions that the Frisiavones were actually the Frisii center on the similarity in names, combined with the Roman classification of 'Lesser Frisii' to the west of the Zuiderzee and 'Greater Frisii' to the east of it  (which provides a reason as to why the Frisii might have been known by two different names). However, Pliny's placement of the Frisiavones in northern Gaul is not near the known location of the Frisii, which is acceptable if the Frisavones are a separate people, but not if they are a part of a greater Frisian tribe.