The Lady Galadriel
Galadriel (Cate Blanchett) was a royal Elf, towards the end of her stay in Middle-earth she was co-ruler of Lothlórien, along with her husband, and was referred to variously as the Lady of Lórien, the Lady of the Galadhrim, the Lady of Light, or the Lady of the Golden Wood. She was Arwen’s grandmother. Tolkien referred to her as ‘the mightiest and fairest of all the Elves that remained in Middle-earth’ and the ‘greatest of elven women’. She was entrusted with Nenya, one of the Three Rings of the Elves.
In The Fellowship of the Ring, Galadriel hosted the Fellowship in Lothlórien after their escape from Moria. At the end of The Return of the King Galadriel passed over the Great Sea with Elrond, Gandalf, and the Ring-bearers Bilbo and Frodo Baggins, marking the end of the Third Age; her exile from Valinor having been lifted by her refusal of the One Ring. She was aged well over 7,000 years at that time.