While dragons have only one king (who is refered to as such) in Aratha, there's a few semi-to-entirely-independent vassal nations that are all under the management of lords who directly serve the King, and partake in the Grand Council yearly.
Arborith, the city-state of Errtdrakhen (Earthwyrm). Located in the mountains near the heart of the continent. A popular location for many who travel there seeking education in science and martial arts.
Shiangyún, the independent territory of the Stormwyrm. It's capital is Storm's Edge. Separated from the rest of Arathan Kingdoms after the war.
Northern Pathways, the Frostwyrm Domain, it's capital being Herth. Not much but snow, trees and rock here, which somehow led to it becoming a place where many famous artists hail from.
Krey'll, the capital of the Tanahri (fire dragons). Situated in Weaver's Desolation, the largest desert on the continent. It is considered the religious center for those worshipping the goddess Six-Head.
Hyakuyama, the other Earthwyrm capital. It is an underground city that never stops moving. It keeps changing it's location every day, and only few know it's route patterns, and thus, how to find it. It is a popular location of research and science.
King's Eyrie, the royal capital, and the defacto capital of the entire continent. It was formerly the Seawyrm capital, but in modern times it's population is mostly mixed, with civillians being from all over the continent, and even other kingdoms outside Wyrm rule.
As for the Windwyrm... They don't have a true kingdom, nor one specific ruler. Will explain eventually.
Next post will be about the lords themselves, so stay tuned!