Most existing writings portray Celeborn as a Sindarin Elf from Doriath, the kingdom of Thingol. He is described as a "kinsman" of Thingol. That Celeborn and Thingol are remotely related is further alluded to by the fact they both have silver hair, a colour which is never mentioned outside of the royal house of the Sindar. This origin was adopted by Christopher Tolkien and Guy Kay for The Silmarillion when it was decided to publish this book after Tolkien's death, and a new paragraph about Celeborn's marriage to Galadriel was inserted. Exactly how Celeborn could have been a kinsman of Thingol was not mentioned. Celeborn's silver hair, considered a rare colour among the Elves, is particularly noted as associated with the House of Elwë and Olwë. Míriel Serindë, mother of Fëanor, also has silver hair, as did Eärwen, daughter of Olwë, mother of Galadriel. Míriel, by this measure, is possibly related to the Sindar, as she may be, like Eärwen, only Noldor by marriage, as far as is known.
Celeborn's further history is as unclear as his past: at one point during the Second Age, Celeborn apparently ruled over Elves in Lindon, but it is not certain if he fell under the overlordship of Gil-galad, or ruled (together with Galadriel?) as an independent lord. Celeborn and Galadriel later rule over the Elves of Eregion (at least in some accounts), before settling in Lothlórien.
Argonath RPG Member
Celeborn, in the Argonath RPG community, was an SA-MP Developer / Manager and was known as [R*]CBFasi. He was the first person to hold the position of the Commissioner of the Argonath RPG Police Department after its founder, [R*]Kaltsu.