Li Chengqian

Li Chéngqián (李承乾) (618 – 5 January 645), courtesy name Gaoming (高明), formally Prince Min of Hengshan (恆山愍王), was a crown prince of the Chinese Tang Dynasty. He was Emperor Taizong's oldest son and first crown prince, but was replaced later by his younger brother Li Zhi (the eventual Emperor Gaozong).

Li Chengqian

Li Chéngqián (李承乾) (618 – 5 January 645), courtesy name Gaoming (高明), formally Prince Min of Hengshan (恆山愍王), was a crown prince of the Chinese Tang Dynasty. He was Emperor Taizong's oldest son and first crown prince, but was replaced later by his younger brother Li Zhi (the eventual Emperor Gaozong).