Middle-earth History: Luthien the Nightingale
Daughter of the King of Doriath, Luthien was the fairest of all her kind and her voice was so beautiful and pure it was said to cause winter to melt into spring. While she was dancing one day, the mortal man Beren spied her and fell in love with her, calling her Nightingale. However, Thingol did not wish Beren to take his daughter’s hand and required one of the Silmarils from Morgoth’s crown.
Against all odds, Luthien and Beren achieved the task with the aid of the great hound Huan, but Beren died soon after. In her grief, Luthien laid down to die and was taken to the Halls of Mandos and there was Mandos moved by her sorrow. After speaking with Eru Iluvatar, a choice was presented unto her; to dwell in peace with the Valar for eternity or be restored to life alongside Beren, doomed to die a mortal death. For her love of Beren, Luthien chose the latter, her story and legacy being preserved in both song and in the line of the Dunedain.