Assassination of Valkorion

In the aftermath of the first skirmish with the Eternal Fleet in 3636 BBY, two prominent figures of the ongoing Galactic War—Darth Marr and the Outlander—were taken prisoner and brought before Emperor Valkorion of the Eternal Empire of Zakuul. Darth Marr instantly recognized Valkorion as the new face of Sith Emperor Vitiate, who had abandoned his Sith Empire and even destroyed all life on the Imperial world of Ziost. Valkorion stated that there were no limits to his power and offered Darth Marr to kneel to before him, and when the Sith Lord angrily refused and attacked Valkorion's Knights of Zakuul instead, killed the leader of the Dark Council with a single Force blast. Valkorion then made the same offer to the one remaining Outlander, but Prince Arcann, the spiteful son of Valkorion, took advantage of this moment to attack his father, resulting in the death of his physical body. Having already endured deaths of multiple host bodies over centuries, Vitiate's spirit attached itself to the Outlander, whom Arcann ordered to be frozen in carbonite intending to trap his father forever, alone and forgotten. Arcann then immediately seized the Eternal Throne and proclaimed himself the new Eternal Emperor, blaming his father's assassination on the Outlander regardless of their involvement and beginning a conquest against the Core Worlds for what he claimed was an act of unprovoked aggression.

Text and facts from the “Assassination of Valkorion” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.