Thuringwethil, Woman of Secret Shadow
Sauron’s vampire messenger, bat-winged and iron-clawed, who carried out his errands between Tol-in-Gaurhoth and Angband.
Maedhros (Years of the Trees - F.A. 587)
Maedhros was one of the princes of the Noldor and eldest of the Sons of Fëanor. He is the only known Elf to have committed suicide. It is uncertain whether he was eventually released from Mandos, or whether he still remains there with his father.
Melian & Thingol
Thingol was the King of Doriath and High King of the Sindar. He was known as Elwë during the first years of the Eldar. Thingol would become a central figure of the First Age, instigating the Quest for the Silmaril, the greatest victory of the Age, but ultimately the cause of his own doom. Melian the Maia was the wife of Elu Thingol and Queen of Doriath. In Valinor, Melian dwelt in the gardens of Lórien; she served Vana and Este. And she was said to be akin to Yavanna.
Melian was the only known Ainu who coupled with one of the Children of Ilúvatar. Their daughter, Lúthien Tinúviel, was said to be the fairest of the Children to have ever lived. She married the Man Beren Erchamion, and as a result, Melian’s Maian blood was passed on to both Elves and Men.
Again therefore in his pain Maedhros begged that he would slay him; but Fingon cut off his hand above the wrist, and Thorondor bore them back to Mithrim.
There Maedhros in time was healed; for the fire of life was hot within him, and his strength was of the ancient world, such as those possessed who were nurtured in Valinor. His body recovered from his torment and became hale, but the shadow of his pain was in his heart; and he lived to wield his sword with left hand more deadly than his right had been.
Tolkien Read-Along Bingo: Fëanor
“For Fëanor was made the mightiest in all parts of body and mind, in valor, in endurance, in beauty, in understanding, in skill, in strength and in subtlety alike, of all the Children of Ilúvatar, and a bright flame was in him.”
The work of our hands built a beautiful ship. How could I begrudge you the sea? Alone, alone, my only, my own. When will you return to me?
While Eärendil was away at sea, the sons of Fëanor descended upon the Havens to reclaim the Silmaril in Elwing’s possession. She cast herself into the Great Sea rather than be captured, but Ulmo changed her into a great white bird. In this form, she came to her husband in his ship Vingilótë with the Silmaril upon her breast.