In fall 496, Yuan Xun, who was then crown prince, but who could not endure the hot weather of the capital Luoyang after Xiaowen moved the capital there from Pingcheng (平城, in modern Datong, Shanxi) in 494, plotted to flee back to Pingcheng with his followers, but his plot was discovered. Xiaowen deposed him, and in 497 created Yuan Ke crown prince to replace Yuan Xun. (The creation was in Luoyang, but it is unclear whether prior to his creation, Yuan Xun was at Luoyang or Pingcheng.) Later that year, Gao, who was in Pingcheng, travelled south to rejoin her son in Luoyang, but she died on the way. Historians generally believe that she was murdered by Xiaowen's wife, Empress Feng Run, who wanted to raise Yuan Ke herself. Whether she was actually able to do so is unclear, but after she was discovered to have carried on an affair with her attendant Gao Pusa (高菩薩) in 499, she was put under house arrest, and Xiaowen ordered Yuan Ke to have no more contact with her.