For more information on Lich King,
why not check out WoWWiki.

The Lich King was created by Kil'jaeden the Deceiver from the spirit of the Orcish shaman Ner'zhul. Initially trapped within the Frozen Throne, the Lich King eventually merged with the human Arthas Menethil becoming one being and the new Lich King. He is the creator of the Scourge and rules over it telepathically from his throne atop the Icecrown Glacier.

Community content is available under CC-BY-SA unless otherwise noted.