We in Eponlli objected to Perdanese called Southern. They are Central, along with Caligus. It *was* rather confusing to move north, as southerners, and invade Perdan from the north, as southerners. And then to live north of Perdan, as Southerners.
I always struggled with this terminology as well. We're actually referring to Sirion as being in the West now in Oligarch, but we still speak about the northern realms as in Eponllyn, Nivemus, Sirion, Shadowdale and Oligarch. Like the phrasing is so freaking rediculous that it's kinda funny, yet confusing.