Gothmog

Note: Gothmog may also refer to a moniker taken on by Mordirith on the Battle of Pelennor Fields.

Gothmog was the lord of Belryg in the First Age. He is responsible for killing three very high-profile High Elves of Beleriand - Fëanor, Fingon and Ecthelion, though he himself was killed by the last of the three during the Fall of Gondolin.