White Lady of Rohan
From Tolkien Gateway
The White Lady of Rohan title given by Faramir to Éowyn of Rohan when they were together looking out from the walls of Minas Tirith and saw the huge cloud that rose above Mordor at the fall of Sauron[1] on 25 March T.A. 3019.[2] They married,[3] and dwelt together in the hills of Emyn Arnen in Ithilien.[1]