Dragonstone

Kingdom
Dragonstone is one of two newer southern kingdoms, and alongside Summerhall, the primary seats of pure blooded Valyrians and Dragonlords. After the Arrival of the Targaryen Dragonlords, along with their cadet branches and other various Valyrians, Westeros entered a state of great tension, similar to the previous cold wars. Within the year - their actions had resulted in the first Targaryen war against The Vale.

Closely following this, they had started the second Targaryen war, in which their involvement in the battle for the Vale made them enemies of the entirety of Westeros. Eventually, this had resulted in a great coalition war against the Dragonlords. After a sequence of long and enormously bloody battles, the resulting death of their first king and one of their largest dragons, and massive casualties for the entirety of Westeros.