Sarkin was a imperial guard devoted to Empress Almaz and her family.
Sarkin is a loyal and devoted lyon, stubborn in the face of death. He can be a psychopath when it is called for, which bodes well for him when he goes up against Itidal.
Sarkin was the leader of the imperial guard, and went up against Itidal when the Duke tried to kill off the royal family and usurp the throne. He gets torn up badly, to the point Itidal and his forces assume he's dead, but he manages to get a hold of and gravely injure the traitorous lyon, which takes the fight out of the rest of them. While the Duke faces execution, the Empress rewards Sarkin with all his former titles and land.