In that year, Gorkon was assassinated as part of a conspiracy to sabotage peace talks between the Klingon Empire and the United Federation of Planets, and Azetbur was subsequently elevated to the position of Chancellor in her father's place. In that capacity, Azetbur carried on her father's attempts at peace, and attended a peace conference at Camp Khitomer. There, Azetbur was present for the attempted assassination of the Federation President by members of the conspiracy, an assassination prevented by James Kirk and the crew of the Enterprise. At the conclusion of the crisis, having witnessed Captain Kirk's defense of peace in spite of his earlier prejudices towards Klingons, she told him, "you've restored my father's faith," to which Kirk replied, "and you've restored my son's," referring to David Marcus, who was murdered by Klingons. (Star Trek VI: The Undiscovered Country)
StarTrek.com spells her name as both "Aztbur" and "Azetbur".
The Star Trek VI novelization stated that Gorkon expected something to happen to him and therefore used his influence to see that the Council would indeed install Azetbur as chancellor. Also in the novel, Azetbur and Brigadier Kerla are lovers, a romantic attachment briefly disrupted when she suspects him of complicity in her father's death.
The novel Serpents Among the Ruins, set in 2311, showed Azetbur after nearly two decades in power, dealing with the unpopular stance of maintaining the peace with the Federation and remaining neutral in the brewing conflict between the Federation and the Romulans. She is assassinated by Ditagh, an agent of General Kaarg, whom she believed to be an ally. Kaarg assumed the Chancellorship himself, and one of his first acts was to ban women from ever being Chancellor again, or even sitting on the High Council.