For though she lived with Aragorn for five score years after and great was their glory together, yet at the last he said farewell and laid him down and died ere old age unmanned him. But she went from the city and from her children, and passed away to the land of Lothlorien, and dwelt there alone under the fading trees: for Galadriel also was gone and Lorien was withering.
And then at last, it is said, she laid herself to rest upon Kerin Amroth; and there was her green grave, until all the world was changed, and all the days of her life utterly forgotten by men that came after, and elanor and nifredil bloomed no more east of the Sea.
"The Tale of Aragorn and Arwen" - The Peoples of Middle-earth - HoMe - J.R.R. Tolkien