Yukâ

Yukâ was the sister of Riyâ, both were the daughthers of the old Easterling emperor Sagông of Shên.

According to a legend Riyâ and Yukâ, who were great Amazons and warleaders, had defeated two of Sauron's Wraiths in battle and took their rings.After their triumphal return to Shên their aging father demanded the Rings to be given to him, but the Rings eventually overcame Riyâ and Yukâ and they slew their old father.Both then became Wraiths, enslaved by the rings they had taken.