Sun Yi 孫翊

Sun Yi, courtesy name Shubi, was the younger brother of Sun Quan. Sun Jian's four sons were Sun Ce, Sun Quan, Sun Yi and Sun Kuang. Sun Yi was brave, fierce, decisive and resolute, and had the bearing of his elder brother Sun Ce. Records, Wu 6 §34Records, Wu 1 §22

At the time when Sun Ce was bringing Jiangdong under his control, Yuan Shao was at the height of his power, and Cao Cao, not yet able to exert his strength as he wished, sought for the moment to placate Sun Ce. Cao Cao therefore summoned both of Sun Ce's younger brothers, Sun Quan and Sun Yi, with due courtesy. Sun Yi's biography records that the Administrator Zhu Zhi recommended him as Filial and Incorrupt and that the Minister of Works summoned him. Records, Wu 1 §35Records, Wu 6 §34

According to the Biography of Zhu Zhi, Sun Yi was sharp and hasty by nature and gave free rein to his joy and anger, and Zhu Zhi repeatedly rebuked and instructed him and enlightened him with moral principles. Records, Wu 11 §7

In the 8th year of Jian'an (203) Sun Yi served as Lieutenant General and concurrently as Administrator of Danyang; he was then twenty years old. Earlier, when Sun Quan killed Sheng Xian, the Administrator of Wu Commandery, Gui Lan and Dai Yuan, whom Sheng Xian had recommended as Filial and Incorrupt, had fled and hidden in the mountains. On becoming Administrator of Danyang, Sun Yi invited them both with due courtesy; Gui Lan became Grand Commander in charge of the troops and Dai Yuan became Assistant of the Commandery. Records, Wu 6 §34 · 41

Sun Yi was later murdered after all by his attendant Bian Hong, and Bian Hong too was executed soon after. The Biography of the Lord of Wu records that in the 9th year of Jian'an (204), when Sun Quan's younger brother Sun Yi, Administrator of Danyang, was harmed by his attendants, Sun Quan had his cousin Sun Yu replace him. Records, Wu 6 §34Records, Wu 2 §8

When Sun Yi was harmed, Sun He galloped to Wanling and angrily rebuked Gui Lan and Dai Yuan for failing to keep proper watch and letting a treacherous outrage take place. The two conferred, saying, 'Bohai is only a distant relative of the general and yet he rebukes us like this. If the General Who Attacks Barbarians comes, not one of us will be left,' and killed Sun He. They then sent men north to welcome Liu Fu, Inspector of Yang Province, and have him stay at Liyang, intending to respond to him with Danyang. Just then Sun Yi's retainers Xu Yuan, Sun Gao, Fu Ying and others killed Gui Lan and Dai Yuan. Sun Quan, hearing of the upheaval, returned from Jiaoqiu, pacified Danyang on the way, and led his army back to Wu. Records, Wu 6 §42–43

His son Sun Song became Colonel of Archers Who Shoot at a Sound and Marquis of a Chief District, and died in the 3rd year of Huanglong (231). Zhuge Liang, Chancellor of Shu, wrote in a letter to his elder brother Zhuge Jin that, having received generous treatment from the eastern court, he felt attached to its young men; that Ziqiao had been a fine talent, so that he grieved for him; and that seeing the objects Ziqiao had given him moved him to tears. Chen Shou wrote that Zhuge Liang said this because his adopted son Zhuge Qiao had told him about Sun Song. Records, Wu 6 §34–35

In the assessment of the Biographies of the Imperial Clan, Chen Shou said that he had written about the Sun family members in detail because some had helped lay the first foundations of the state and some had guarded the frontiers, equal to their duties and not disgracing their honors, but he did not single out Sun Yi for discussion. Records, Wu 6 §52