'Left Lady Lü of Bright Deportment') was the consort of Emperor Taiwu of Northern Wei.
She was the mother of Tuoba Yu, who was briefly Emperor of Northern Wei.
She was born into the Rouran royal family, the daughter of Khan Datan, and the sister of Wuti.
In 452, the eunuch Zong Ai killed Emperor Taiwu and put Taiwu's son Tuoba Yu on the throne; he then killed Tuoba Yu as well.
The other officials overthrew Zong and put Emperor Taiwu's grandson Tuoba Jun (son of Tuoba Huang the Crown Prince, who predeceased him) on the throne as Emperor Wencheng.