King Sarvien II was the last king of Dericost. He was transformed into an undead and proclaimed, after his conversion, that he would not step aside to allow a new living ruler to take the throne. Previous challenges to His Eternal Splendor's rule had been swiftly swept aside, but Sarvien II's political maneuvering with other disaffected undead allowed him to resist the forces loyal to His Eternal Splendor. Sarvien was also aided by the Filinuvekta's unwillingness to expose themselves to the living. Since the Latzimestal had no such compunction, Sarvien revealed that an undead caste ruled Dericost, of which he is the King. All resulting unrest in the Kingdom was put down, and Sarvien set his sights on expanding the Kingdom.