Empress Mu Cheng was of the Niuhuru clan. She was the first Empress Consort of the Qing Dynasty Daoguang Emperor. Niuhuru became the principal wife of the then Prince Mianning in 1796. She died in 1808, and when in 1820 Mianning (Minning) ascended the throne as the Daoguang emperor, Niuhuru was posthumously made Empress and given the title of 'Empress Xiao Mu Cheng'. Long after her death she was removed from her tomb to the Muling mausoleum.