User blog comment:Madman97/The Aedra Vs. The Daedra theory/@comment-3025184-20131010203442/@comment-11345660-20131010222526

Name your source please. Maybe Ariel was Akatosh then as he is now, just a different name. I am sorry, but in order for proof, I need a source.

And Alduin calls himself "First born of Akatosh" not Akatosh himself.