King of the Dead

The leader of those men whom Isildur cursed when they broke their vow to fight aginast Sauron with him. He fought the Corsairs at Pelargir under Aragorn, finally fulfilling his vow. Aragorn released him, and he broke his spear, cast it down and vanished.

King of Gondor

Used by Háma in reference to Aragorn, after hearing Aragorn's claim that he was the Heir of Elendil, to impress upon him the importance of leaving all weapons outside of Meduseld.

King of the Mountains

The King who swore allegiance to Isildur to fight Sauron. He was later known as the King of the Dead.

Kings

Used when speaking of the Kings of Middle-earth, specifically those of Númenõrean descent. It usually was used when speaking of times past, the years early in the Third Age. Often referred to as the Kings of Old and the Kings of Men.

King Under the Mountain

The King of Erebor.