Celeborn:

Celeborn was the Lord of Lothlórien,and the Lady Galadriel's husband. He had lived in Middle-Earth from at least the First Age, though he too came from Valinor, to some time after the Keepers of the Rings sailed into the West. After that it is not known what happened to him other than the fact that he ruled in East Lórien for a while then went to Rivendell. It is not known if he eventually sailed into the West.