>>52495199Yes and no, Volo and Cogita are descendants of the Celestica people, the original inhabitants of Sinnoh.
Now taking the real base Ezo-Hisui (Before being Hokaido-Sinnoh) it was inhabited by various ethnic groups for periods:
Yayois in the south and Nivkhs in the north (the first from Korea and the second from Russia) one of these would be the Celestica people.
Ainu and Orok, these would be represented with the Pearl and Diamond clans.
Finally the people of Yamato (Japanese) these would be represented by people like Kamado, the latter would be the ones who would take the 4 islands by force and decimating the indigenous population.
In short, Cynthia's family were among the first settlers of the original Sinnoh, but they were decimated or expelled from their island, returning to the mainland, that is, Russia.