Granddaughter of Beren and Luthien, wife of Earendil, and mother of Elrond and Elros. Elwing inherited the Silmaril recovered by her grandparents. When the sons of Feanor attacked the Havens of Sirion to reclaim it, she cast herself into the sea with the jewel rather than surrender it. Ulmo transformed her into a white bird, and she flew to Earendil, bringing him the Silmaril that allowed them to reach Valinor.