Pei Du
When the future Empress Dowager Wang was young, she entered the Crown Prince's palace and became a consort to then-imperial prince Li Heng, and she bore his oldest son Li Zhan in 809. After Li Heng became emperor in 820 (as Emperor Muzong), she was created an imperial consort rank — although the rank has been lost to history — but was not created empress. In 822, after Emperor Muzong suffered a stroke that rendered him unable to walk, Li Zhan was created crown prince, at the urging of the key officials Li Fengji and Pei Du.