Dark Lord
From Tolkien Gateway
The Dark Lord, the Dark Power or the Enemy were names given to the two great enemies of the Free Peoples of Middle-earth, Morgoth the fallen Vala, and Sauron, a Maia.
History
When Morgoth ruled in Utumno, he took the form of a dark lord, tall and terrible. Thereafter, before approaching Ungoliant after escaping from the Valar's service, he took the same form, in which he would remain for ever.[1] Once in Angband, he forged an Iron Crown and proclaimed himself King of the World. He governed his armies from his dark throne, and never abandoned it or fought personally except once.[2] The Edain
