The Deryni are a fictional race of humans who possess a variety of psychic and magical abilities in the Deryni series of historical fantasy novels by Katherine Kurtz. The political, social, and religious conflicts that surround the Deryni, particularly in the Kingdom of Gwynedd, often serve as major plot points throughout the novels.
Read more about Deryni: Deryni Powers, Genetic Basis of Deryni Powers, The Haldane Potential, Deryni Status in Society, Deryni As Characters