Elrond Half-elven is a fictional character in J. R. R. Tolkien's Middle-earth legendarium. Both of his parents, Eärendil and Elwing, were half-elven, having both Men and Elves as ancestors. He is the bearer of the elven-ring Vilya, the Ring of Air, and master of Rivendell, where he has lived for thousands of years through the Second and Third Ages of Middle-earth. He was the Elf-king Gil-galad's herald at the end of the Second Age, saw Gil-galad and king Elendil fight the dark lord Sauron for the One Ring, and Elendil's son Isildur take it rather than destroy it.

Eärendil the Mariner and his wife Elwing are characters in J. R. R. Tolkien's Middle-earth legendarium. They are depicted in The Silmarillion as Half-elven, the children of Men and Elves. He is a great seafarer who, on his brow, carried the Morning Star, a jewel called a Silmaril, across the sky. The jewel had been saved by Elwing from the destruction of the Havens of Sirion. The Morning Star and the Silmarils are elements of the symbolism of light, for divine creativity, continually splintered as history progresses. Tolkien took Eärendil's name from the Old English name Earendel, found in the poem Crist A, which hailed him as "brightest of angels"; this was the beginning of Tolkien's Middle-earth mythology. Elwing is the granddaughter of Lúthien and Beren, and is descended from Melian the Maia. Through their progeny, Eärendil and Elwing became the ancestors of the Númenorean, and later Dúnedain, royal bloodline.