Shen Feng's first year (252) in the first year of Shenfeng (252) reigned for twenty-four years in the Eastern Wu Emperor Sun Quan died of illness at the age of seventy-one, before the thirteenth year of Chiwu (250 years) Sun Quan had already made his youngest son Sun Liang, who was only 8 years old, as crown prince, which was the third time Sun Quan was crown prince, so Sun Liang, who was only 10 years old after Sun Quan's death, ascended the throne as emperor.
However, Sun Quan had seven sons, and he could not be unaware of the various drawbacks of the young emperor's ascension to the throne in history, but why did he still pass the throne to his young son who was only ten years old? The reason is actually quite simple.

Let's first look at the situation of Sun Quan's seven sons before his death: the eldest Sun Deng was born in 209 (Sun Quan asked Guan Yu for relatives), in 229, when Sun Quan became emperor, he made Sun Deng crown prince, and the 20-year-old Sun Dengfeng was prosperous, and there were many praises for him in history, such as Chen Shou commented on Sun Deng in the "Romance of the Three Kingdoms": "Sun Deng's heart is enough to be maomei.' ''
In fact, Sun Deng was indeed a qualified prince, he repeatedly advised Sun Ce, and the handling of government affairs was also orderly, but unfortunately Sun Deng died young, and Sun Deng died in the fourth year of Chiwu (241), only thirty-three years old, Sun Quan was deeply saddened by it, and mentioned in the edict: ''The country is mourning Ming, the people are blessed!'' ''
Sun Quan's second son, Sun Wei, was born in 213, but died much earlier, in 232 at the age of 20.
A year after Sun Deng's death in 242, Sun Quan established the eldest third son and prince at that time, but at this time Sun Quan was already more than 60 years old, and from the moment he was re-established as the crown prince, Sun Quan was capricious on the issue of heirs, because he was as fond of the three sons and the fourth son, and soon after Sun He was made crown prince, he was named King of Lu.
On the one hand, Sun Ba was deeply favored by Sun Quan, and on the other hand, he formed an alliance with Sun Luban, the princess of Quan, who was more favored by Sun Quan, to try to seize the position of Sun and the crown prince, which was the "Dispute of the Two Palaces", which had a profound impact on the political situation in the late Eastern Wu Period, and in the dispute over the conquest, the courtiers took sides one after another, such as Lu Xun, Gu Tan, Wu Yue, Zhu Zhao, Zhuge Ke, Teng Yin, Shi Ji and other important ministers supported The Crown Prince Sun He, while Bu Qi, Lü Dai, Quan Chun, Lü Zhao, and Sun Hong supported Sun Ba, the Prince of Lu.
The final outcome of the "Battle of the Two Palaces" was a lose-lose situation: in the thirteenth year of Chiwu (250), Sun Quan deposed Prince Sun He and killed Sun Ba, the Prince of Lu, so that the position of crown prince could only be fought over by five sons, Five Sons, Six, Hugh, and Seven Sons, And Liang.
So why did Sun Quan abandon his fifth and sixth sons, but make Sun Liang, who was only 8 years old, crown prince? This has to mention the dispute over Sun Quan's harem.
In the Romance of the Three Kingdoms - Wu Shu Wu - Biography of Concubines, six wives of Sun Quan are Liu Quan, namely Lady Xie, Lady Xu, Lady Bu (Empress Dowager Bu), Lady Wang (Empress Dayi Wang), Lady Wang (Empress Jinghuai), Lady Pan (Empress Pan), of whom there are two daughters Sun Luban and Sun Luyu's Lady Bu, Lady Wang (Empress Dayi) who gave birth to Sun Liang, and Lady Pan (Empress Pan) who gave birth to Sun Liang; in addition, there are several concubines who have not been established, such as Sun Ba's biological mother Xie Ji, Sun Fen's biological mother, Zhongji, and Yuan Shu's daughter Lady Yuan, and so on.
Among the three candidates for the three crown princes of the fifth son Fen, the sixth son Hugh and the seventh sun Liang, Sun Liang's biological mother Lady Pan was the most favored (at that time, the equally favored Lady Bu and Lady Wang had died), and the history said that Lady Pan Shupan looked like a heavenly immortal, and was known as the most beautiful in Jiangdong, sun Quan was very fond of her, from the example of Sun Luban, it can be seen that Sun Quan loved Wu and Wu, and the mother concubine was also favored by the favored crown princess.
Sun Fen's biological mother Zhongji was not as high as Lady Pan 's (during the Two Han and Three Kingdoms period, lady's rank was much higher than that of Lady Ji), and Sun Xiu's biological mother, Lady Wang (Empress Jinghuai Wang), although of the same rank as Lady Pan, was far less favored than Lady Pan, so it was not surprising that Sun Quan, who was a little faint in age, chose her youngest son Sun Liang as crown prince.
Of Sun Quan's seven sons before his death, one was deposed, one was given to death, two died prematurely, and the youngest, Sun Liang, became emperor.
It has to be said that the ''Dispute of the Second Palace'" and Sun Quan's young Sun Liang laid the foundation for the turmoil in the late Eastern Wu Dynasty, and the ascension of the young emperor to the throne often led to the harem interfering in the government or the power of the ministers to arbitrarily rule, and sure enough, Sun Quan's death and power fell into the hands of Zhuge Ke and Sun Qiang, and finally not only Sun Liang was deposed, but almost none of the five great orphan ministers died well.