Arwen

Though as an immortal Elf she was many centuries his senior, Arwen's heart belonged to Aragorn, a mortal man and ward of Elrond who dwelt in Rivendell under the tutelage of the Elves and was fated to some day reclaim the lost throne of Gondor.

This love was no easy thing to bear in the time of the War of the Ring, when the time of the Elves was waning and her people were leaving Middle-earth for the Undying Lands. As a mortal, that way to the uttermost west was barred to Aragorn, leaving Arwen to choose between her family and people, and the man she loved.

For the sake of her affection, Arwen chose a mortal life, and in so doing bound her own life to the fate of the Ring. She would wed Aragorn as a mortal woman in the event of his unlikely triumph, or fade into darkness beneath the shadow of Sauron's dominion.