Admiral Hembec was a Klingon in command of the Klingon Empire's "planet-obliterating fleet" in the year 2290. (TLE novel: Excelsior: Forged in Fire)

Hembec was a key figure in the extermination of the tribble. By 2376, many a Klingon still accompanied a good drink with the song Hembec's Sword. (ST short story: "New Worlds, New Civilizations", "Second Chances")