Tinuviel

Lúthien Tinúviel is an elf princess in J. R. R. Tolkien’s legendarium, who falls in love with a mortal human, Beren, and chooses to become mortal herself rather than to live without him. Tinúviel is a Sindarin name given to her by Beren, meaning "daughter of twilight" and therefore "nightingale".

Pronounced tin-OO-vee-el.