[The Saucepan Man]

Galadriel was the only one whose offspring did not die.

Denthor's son, Boromir, was killed by Orcs defending Merry and Pippin. His brother Faramir died of old age.

Melian's daughter, Luthien, relinquished her immortality for the love of Beren.

Hurin's children all died: Urwen from an evil plague released by Morgoth, Nienor threw herself in the river Teiglin when she learned from a dying Glaurung that she had married her brother, and the self-same Turin slew himself in grief shortly therefater.

Theoden's son, Theodred fell at the first battle of the Ford of Isen.

Lobelia Sackville-Baggins' son, Lotho was killed by Grima Wormtongue.

Galadriel's daughter, Celebrian, although captured, tormented and poisoned by Orcs, was rescued by her sons and healed by Elrond. She therefore did not die, but chose to pass to the West.

So, is it Galadriel?