Mur'Eq

From Memory Alpha, the free Star Trek reference

Mur'Eq was a member of the Klingon Imperial Family and the Klingon emperor who introduced the use of blunted bat'leths for practice in order to make sure "his warriors kill their enemies and not each other". (VOY: "Prophecy")

Leaders of the Klingon Empire
Emperors	Kahless I • Reclaw I • Reclaw II • Sompek • Mur'Eq • Kahless II
Chancellors	2151 Chancellor • 2154 Chancellor • M'Rek • Mow'ga • Gorkon • Azetbur • K'mpec • Gowron • Worf • Martok