Tales of Tolgard
Lizard kings are a subrace of lizardfolk. While lizardfolk tend to be neutral in their outlook, lizard kings are almost always chaotic evil. Additionally, they have a much greater knowledge of technology and civilization than their primitive cousins.
The creation of the lizard kings came about when Sess’innek managed to steal some followers of Semuanya. He gave them knowledge and power, remaking them in his own image. This demon lord has raised himself up to the status of demi-god and is venerated by all lizard kings as their creator.