Celebrían weds Elrond in the year 109 of the Third Age. Elladan and Elrohir are born twenty-one years later, in the year 130, followed by Arwen in 241.
In 2509, on the way to Lothlórien from Imladris, Celebrían is assailed by Orcs in the Redhorn Pass and wounded. She is rescued by her sons and her poisoned wound is healed by Elrond, but she sails to Valinor in the following year. This occurs about half a century before the events of The Lord of the Rings, and little else is known about her.