Reclaw

From Memory Alpha, the free Star Trek reference

Reclaw was the last Klingon emperor of the Second Dynasty, who was assassinated in a coup d'etat by General K'Trelan. His entire family, including his daughter Shenara, was executed. When the Third Dynasty came into power, another Klingon was given the title and name of Emperor Reclaw to create the illusion of an unbroken line. (DS9: "You Are Cordially Invited")

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