Sompek

Sompek was an Emperor of the Klingon Empire in ancient times. He is remembered as a great hero of the Empire, perhaps most famous for his conquest of the city of Tong Vey. 

Sompek is also credited with the transformation of the First City from a defensive fortress encompassing the Great Hall into a proper city, and influencing the city's architecture for centuries to follow. 

Lieutenant Commander Worf was an admirer of Sompek, and played the role of the emperor in a holosuite recreation of the Battle of Tong Vey.