So diving deeper into the confusing namegiving of Franconia: Maybe these Ripuarian Franks even pushed out the original people, in vain of the Alamanni and Thuringians who went to settle rather in the north. In other words these river 'Franks' took in this area, I guess, also in terms of migration of populations, not only in terms of sovereignty to the highest scale boss claiming authority over this territory. Anyway, the shift in power and at least some people, gave rise to region names like Franconia. Did the inhabitants call the region that way, if there was an understanding of a regional entity at all? Or did outsiders? Or did only historians and political figures? I don't know and some more underlying history is not straightforward. Giving names to territorial entities seems a very dialectic, deliberate political and then again just as much a random thing. For example: In the east of the current region Flanders (centuries ago called Brabant) people refer with de Vlaanders to the very West of the current region, but changing one letter refers to the larger region encompassing their own.