Son of Eärendil and Elwing, who at the end of the First Age chose to belong to the Firstborn, and remained in Middle-earth until the end of the Third Age; master of Imladris (Rivendell) and keeper of Vilya, the Ring of Air, which he had received from Gil-galad. Called Master Elrond and Elrond Half-elven. The name means 'Star-dome'. 122, 306, 315, 322, 354-6, 366-75, 37S, Sons of Elrond 377