Caror
From The Battle for Wesnoth Wiki
Caror (also known as Lich-Lord Caror) was one of the Wesfolk leaders who became a Lich-Lord. He obtained and studied the Ruby of Fire, and wrote the Book of Fire and Darkness regarding its properties. During the Wesfolk War, he was petrified in stone not far from Southbay. Prince Haldric undid the spell long enough to kill Caror and steal the Book of Fire and Darkness.