Sun He (224 – November or December 253), courtesy name Zixiao, was an imperial prince of the state of Eastern Wu during the Three Kingdoms period of China. He was the third son of Sun Quan, the founding emperor of Wu. In 242, he became the crown prince after the death of his brother Sun Deng, the eldest son and first heir apparent of Sun Quan. In the 240s, a power struggle broke out between Sun He and his fourth brother, Sun Ba, over the succession to their father's throne. The conflict ended in 250 when Sun Quan forced Sun Ba to commit suicide, deposed Sun He and replaced him with Sun Liang. In 253, during Sun Liang's reign, the regent Sun Jun reduced Sun He to commoner status and forced him to commit suicide. In 264, one of Sun He's sons, Sun Hao, became the fourth emperor of Eastern Wu. After his coronation, Sun Hao honoured his father with the posthumous title Emperor Wen. Early life Sun He was born as the third son of Sun Quan, a warlord of the late Eastern Han dynasty who became the founding emperor of the Eastern Wu state in the Three Kingdoms period; he had two elder brothers, Sun Deng and Sun Lü. His mother was Lady Wang (), one of Sun Quan's concubines; she was posthumously honoured as "Empress Dayi" () in 264. As Lady Wang was Sun Quan's favourite consort at the time, Sun He also became his father's favourite son. In 237, when Sun He was only 13 years old, Sun Quan appointed some officials to serve as Sun He's personal staff and ordered Kan Ze, the Prefect of the Palace Writers, to be Sun He's personal tutor. Sun He, then a young teenager, was known for being studious and respectful. The officials who met him all praised him. In 241, Sun Quan's eldest son and heir apparent Sun Deng, died of illness. One year later, in February or March 242, Sun Quan designated an 18-year-old Sun He, his eldest surviving son, as the new Crown Prince to replace Sun Deng. At the same time, Sun Quan also promoted Kan Ze to Crown Prince's Grand Tutor (), appointed Xue Zong as the Crown Prince's Junior Tutor (), and ordered Cai Ying (), Zhang Chun (), Feng Fu (), Yan Wei () and others to serve as the Crown Prince's