In "Star Trek", who was the founder of the Klingon Empire and its philosophy?

Kahless the Unforgettable is considered the founder of the Klingon Empire and its philosophy in Star Trek. He is a legendary figure among the Klingon people, revered for his exceptional and honourable deeds. Kahless played a crucial role in shaping the Klingon society and its values, including honor, strength, and the pursuit of glory through battle. His teachings and actions are deeply ingrained within Klingon culture, making him the central figure of Klingon mythology and the driving force behind their empire.