King of Nargothrond was the title of the ruler of Nargothrond in the time of its existence during the First Age.
As its founder and original ruler, the title belonged solely to Finrod but with his death in the pits of Tol-in-Gaurhoth the title was passed to his nephew Orodreth, who ruled Nargothrond until its sack by the forces of Morgoth.
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