Location(s): Lórien, Imladris, Valinor
Dates: II - III 2509
Parents: Celeborn (father), Galadriel (mother)
Children: Elladan, Elrohir, Arwen
In III c.2300, "Elrond who had remained unwed through all his long years, now took to wife Celebrían, daughter of Galadriel and Celeborn of Lórien."
The Peoples of Middle-earth, The Tale of Years of the Third Age
Celebrían, on a journey to visit Galadriel in Lórien, was captured and tormented by Orcs. She was rescued by Elrond and their sons. While Celebrían was healed physically, "she lay under a great cloud of fear and she loved Middle-earth no longer". She finally left for the Grey Havens and sailed to Valinor.
The Peoples of Middle-earth, The Making of Appendix A
In the days of Arahad I the Orcs, who had, as later appeared, long been secretly occupying strongholds in the Misty Mountains, so as to bar all the passes into Eriador, suddenly revealed themselves. In 2509 Celebrían wife of Elrond was journeying to Lórien when she was waylaid in the Redhorn Pass, and her escort being scattered by the sudden assault of the Orcs, she was seized and carried off. She was pursued and rescued by Elladan and Elrohir, but not before she had suffered torment and had received a poisoned wound. She was brought back to Imladris, and though healed in body by Elrond, lost all delight in Middle-earth, and the next year went to the Havens and passed over Sea.
The Return of the King, LoTR Appendix A, Annals of the Kings and Rulers: Eriador, Arnor, and the Heirs of Isildur
Ying, 01.08.03; Loquacious, 01.06.03; Elena Tiriel 7.14.04