Emperor Han Gao, out of the consideration of consolidating the Jiangshan, on the one hand eradicated the princes of different surnames, and on the other hand, he made his sons kings, hoping that they could play the role of defending the imperial family and appeasing the localities. Among them, his nephew Liu Hao was made the King of Wu, commanding 3 counties and 53 cities in Jiangdong, and was the most important prince of the imperial court in the southeast. In fact, Liu Hao had no intention of rebellion, and the reason why he embarked on the road of rebellion was undoubtedly the murder of his son Liu Xian.
During the reign of Emperor Wen of Han, Liu Hao once sent the crown prince Liu Xian to the capital to face the saint, and the emperor, out of courtesy, ordered the crown prince Liu Qi to accompany him to drink and play chess. When Liu Xian was in the country, because the teachers around him were all Chu people, over time he developed a frivolous and arrogant, fierce and fierce personality, and no one paid attention to it. Liu Xian was probably not good at chess, and when he was in the ascendant, he thought of repenting chess, and the crown prince Liu Qi refused to let it, so the two sides had a dispute.

Liu Hao was the most important prince of the Han Dynasty in the southeast
In terms of identity, Liu Qi was the crown prince of the empire and the coming emperor; Liu Xian was the crown prince of the kingdom, although he was a future prince, but in front of Liu Qi, he was a courtier. In an era when the relationship between monarchs and subjects is greater than everything, courtiers must be absolutely subordinate to the monarch, and those who dare to disobey or provoke will only die. As far as this matter is concerned, whether Liu Xian is reasonable or unreasonable, he should let Liu Qi go, which is his duty as a courtier.
However, instead of apologizing to the crown prince, Liu Xian quarreled with him and had a very disobedient attitude. Liu Qi swallowed this evil breath, grabbed the chessboard next to him and smashed it into Liu Xian's head, but he did not expect to take his life ("When Filial Piety, Prince Wu entered the meeting and had to serve the Crown Prince to drink Bo.) Prince Wu's masters are all Chu people, light and proud. Bo argued, "No, the crown prince led Bo Bureau to mention Prince Wu and kill him." See Book of Han, vol. 35).
Liu Qi had a dispute with Liu Xian for playing chess, and lost his hand to kill the other party
Since it was the prince who killed people, there is no such thing as paying for his life, let alone that he is manslaughter. Therefore, after the incident, Emperor Wen only symbolically reprimanded the prince a few words, and then sent someone to send Liu Xian's body back to the State of Wu for burial. However, Liu Hao could not swallow this evil breath, so after the imperial emissaries arrived, they sighed and said: "The Liu clan in the world is the same family, since he died in Chang'an, then he should be buried in Chang'an, so why should he be sent to the State of Wu for burial?" After saying this, Liu Hao ordered someone to send Liu Xian's body back to Chang'an for burial.
After this incident, Liu Hao complained about the imperial court, so he said that he was ill and could not come to see the emperor. When he sent someone to find out the truth, Emperor Wen was furious at Liu Hao's actions and prepared to investigate him for his crimes, causing the latter to think of rebelling in fear. Fortunately, someone defended Liu Hao, and the emperor decided to let him go on a horse, and gave him a few canes to lean on, allowing him not to come to see the Son of Heaven until he died. As a result, Liu Hao was exonerated and temporarily suspended the conspiracy plan.
Liu Hao resented the imperial court and gradually developed a rebellious heart
So he sent him to bury Wu. Wu Wang said: "The next sect in the world, when Chang'an dies, it is buried in Chang'an, so why bury it!" "The funeral of the restoration of Chang'an." King Wu was resentful and slightly lost his courtesy, saying that he was ill and could not be in the dynasty. Jing Shi knew that he had died as a son, and when he inquired about whether he was really sick, Zhu Wu made envoys come and punished him. Wu Wang was afraid, and what he was plotting was so great... The Son of Heaven pardoned wu's emissaries, and gave king Wu a few rods, old and not dynasty. Wu was relieved, and his plot was also solved. Ibid.
However, not long after Liu Hao's dissipation, with the death of Emperor Wen and the ascension of the crown prince Liu Qi to the throne, friction between the State of Wu and the imperial court began again, this time, finally pushing Liu Hao onto the road of no return for rebellion. Originally, after Liu Qi took the throne, in order to solve the accumulated disadvantages of the feudal state of being too powerful and the tail to be too big to lose, he adopted the plan of "cutting the domain" proposed by Yushi Dafu Chao, and used various excuses to successively cut down the six counties of the Chu state of Donghai, Hejian county of the Zhao state, and jiaoxi county, and plotted to cut down the Huiji County and Yuzhang County of the Wu state.
The Han Jing Emperor implemented the policy of "cutting the domain", triggering the "Rebellion of the Seven Kingdoms"
The imperial court's "sharpening of the sword" made the kings of the clan fearful and indignant, and Shun, with the new hatred and old hatred in Liu Hao's heart, simply issued an order in the imperial court for more than ten days, and then united with Liu Peng, the king of Chu, Liu Sui, the king of Jinan, Liu Xian, the king of Zichuan, Liu Ang, the king of Jiaoxi, and Liu Xiongqu, the king of Jiaodong, to launch a rebellion in the name of "Qing Jun's side and The Mistake of The Seven Kingdoms", which was known as the "Rebellion of the Seven Kingdoms", which was three years after Emperor Jing (154 BC).
At the beginning of the rebellion, the momentum was very strong, the main force crossed the Huai River, surrounded the Liang state, and the army was directly in the direction of Luoyang, which shocked emperor Jing's subjects. In order to solve the problem, Emperor Jing once succumbed to Liu Hao, at the cost of cutting off the wrong waist and destroying his family, hoping to exchange the latter's retreat, but was refused. In desperation, Emperor Jing issued an edict with Zhou Yafu as his lieutenant and ordered him to lead a large army to fight, and the rebellion was quelled in less than three months.
Map of the "Rebellion of the Seven Kingdoms"
After the defeat of Liu Hao's army, he led more than a thousand strong men across Huaishui and fled to Dantu, hoping to use the strength of the local East Vietnamese to continue to confront the imperial court. Unexpectedly, the imperial court sent someone to bribe the King of Dongyue and let him kill Liu Hao. The king of Dongyue, greedy for the emperor's reward, designed to trick Liu Tao, taking advantage of the latter's labor force to behead him and send his head to Chang'an. After Liu Hao's defeat and killing, the state of Wu was abolished.