The western half of Alyndrica formed of a multitude of feudal kingdoms established after the immigration of the Tuathan people from an unknown disaster to the south.
The Tuathans settled among various pastoral cultures of humans and gnomes.
Today, Sidheon is the largest confederacy of fuedal kingdoms, and dominates the central plains of the area. Valista is nominally under the rule of the High King of Sidheon, as are the scattered smaller kingdoms that rule themselves under the banner of the High King.