The Regnant, a Harrower-class dreadnought, served the Sith Empire throughout both the Cold War and the [Galactic War].
Grand Admiral Harridax Kirill, previously a mercenary and slaver before becoming an Imperial officer, used the Regnant as his flagship. Captain Sirinek was in command of the vessel. The Grand Admiral, more widely known as "the Voidwolf", was in command of a sizeable fleet composed of Imperial privateers and pirate ships.
During the Battle of Corellia, the Voidwolf and his fleet were poised to strike Corellia's Republic shipyards, but an enterprising smuggler and Republic privateer, who had been tricked into assisting the Voidwolf's plans, intervened. The smuggler engaged the Voidwolf in combat and triumphed over him on the Regnant's bridge. Subsequently, the Voidwolf met his death when the grenade he hurled at his adversary was returned to him. A failsafe was triggered by the Voidwolf's demise, initiating the ship's self-destruction sequence. However, the smuggler managed to reach the escape pods and returned to Corellia just as the ship was destroyed in an explosion.