Eärendil the Mariner (pronounced [ɛaˈrɛndil]) 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. Eärendil is the subject, too, of the song in The Lord of the Rings sung and supposedly composed by Bilbo in Rivendell, described by Tom Shippey as exemplifying "an elvish streak ... signalled ... by barely-precedented intricacies" of poetry. Source: Wikipedia (en)