Board Thread:Lore Discussion/@comment-60.230.35.86-20140512044045/@comment-124.180.169.237-20140621184105

They are not Liches, they are a complicated undead creature created by magic. Furthermore, it doesn't state anywhere that they are all Nord. While the Nord worshipped the Dragon priests they could have easily been Snow Elves as well, but, due to the time frame Breton is completely out of the question.