aredhels:

Their sister was Aredhel the White. She was younger in the years of the Eldar than her brothers; and when she was grown to full stature and beauty she was tall and strong, and loved much to ride and hunt in the forests. Ar-Feiniel she was called, the White Lady of the Noldor, for she was pale though her hair was dark, and she was never arrayed but in silver and white.