Names

[Foot]

And that relies on a ethnicity system and naming system that are concerned with the same thing. For the Hellenes, the ethnicity system describes where they came from, their surname follows their family. For the Romans, the ethnicity system describes their family as does their surname. I think most Barbarian factions have it the other way round, both the ethnicity and the surname (through epithets) describe where they came from not a family name.

Foot

[Tellos Athenaios]

And you can always pretend that (which isn't terribly a-historical either) your guy M. Lakedaimonios from Korinthos (which is what the ethnicity Korinthios says) is actually:

M. from a migrated branch of some Lakedaimonios family which happened to settle in Korinthos. So he is Korinthios (by birth) but called Lakedaimonios (family heritage).

[Klearchos]

Ok.. I just asked if that was aproblem that could be solved...For more historical accuracy only.