After Yingbu's death, only Lu Xuan, the king of Yan, and Wu Chen, the king of Changsha (the son of Wu Rui), remained among the kings with different surnames, and the remaining six kings with different surnames were killed or demoted one after another.

Lu Juan is Liu Bang's youngest child, the two were born on the same day, the same month, and the same year. Lu Juan has always followed Liu Bang's side and won Liu Bang's trust.

After the establishment of the Han Dynasty, Lu Juan was awarded the title of Taiwei and Chang'an Hou. The original Yan King Zang Di was sealed by Xiang Yu, and the surrender of Liu Bang was only forced by the situation. In the Chu-Han War, Zang Di did not make much effort. Xiang Yu was defeated, and his old subordinates were implicated. Zang Di was uneasy and rebelled first among the kings with different surnames.

Liu Bang led the army to conquer in person, quelled the rebellion, beheaded Zang Di, and established Lu Juan as the king of Yan.

The wife of Zhang Ao, the king of Zhao, is Princess Lu Yuan. Liu Bang was not particularly gracious because Zhang Ao was his son-in-law.

In 200 B.C., Liu Bang returned to Beijing from the northern expedition of the Xiongnu, passing by his son-in-law's house, Zhang Ao was respectful to his father-in-law, and personally poured wine and served plates during dinner. Liu Bang was not polite at all, and shouted to his son-in-law. Zhao Guoxiang Gao was very angry and wanted to assassinate Liu Bang. Before it was arranged, Liu Bang left ahead of schedule, and this thing didn't work out.

The following year, Guan Gao's enemies reported the matter. Zhang Ao and others were arrested and imprisoned. Guan Gao took it all in, indicating that King Zhao did not participate. Liu Bang didn't believe it. Empress Lu felt sorry for her daughter and said that Zhang Ao would not rebel even if she looked at Princess Lu Yuan.

Liu Bang scolded: "Zhang Ao has won the world, will he still care about your daughter!" ”

Guan Gao was tortured and bruised all over his body, but still insisted that King Zhao did not rebel. Liu Bang was finally moved and released Zhang Ao, while pardoning Guan Gao. Guan Gao calmly committed suicide after receiving the news that King Zhao was safely released from prison. Zhang Ao was lucky to pick up a life and was demoted to Xuan Pinghou.

Lu Juan became more and more frightened, worried that a tragic fate would befall him. Once there is a conflict of interest, even a good friend can become an enemy.

When the acting minister Chen Feng rebelled, Lu Juan took the opportunity to send his confidant Zhang Sheng to contact the Xiongnu and befriend the Xiongnu for self-protection. Liu Bang sent the Marquis of Piyang to summon Lu Juan to Beijing to meet him, but Lu Juan did not come under the pretext of illness. After returning from the trial, he reported to Liu Bang that Lu Juan had signs of rebellion. Liu Bang also received information that Zhang Sheng acted as an envoy between the Xiongnu and Lu Juan, and judged that Lu Juan's rebellion was indeed indeed.

Liu Bang appointed Fan Xu and Zhou Bo as generals to attack Lu Xuan, who defected to the Xiongnu with thousands of men. Liu Bangfeng's youngest son, Liu Jian, was the king of Yan.

So far, only Wu Chen, the weakest king of Changsha, has been preserved.

Every time Liu Bang eliminated a king with a different surname, he would correspondingly crown the children of the Liu family as kings.

After eradicating Han Xin, Liu Bang divided his fief into two parts, the east of the Huai River was given to his brother Liu Jia and named King Jing, and the west of the Huai River was given to his younger brother Liu Jiao, who was named King of Chu.

Liu Fei was the illegitimate child of Liu Bang and his mistress Cao before his career. The Cao family died early, and Liu Bang felt guilty about this eldest son, and wanted to make up for it in other aspects, so he named Liu Fei as the king of Qi, covering more than 70 cities, and the largest fief area among the princes and kings.

The eldest son of the second brother Liu Zhong, Liu Bi, was named King of Wu.

In order to ensure that the surname Liu does not change his surname, Liu Bang tried his best. His health was getting worse and worse, and he was thinking more and more about what was going on after his death. Liu Bang suddenly realized that he had missed one of the most dangerous enemies.

This enemy is Empress Lu.

He was worried that after his death, Empress Lu would overwhelm the ministers as the biological mother of Emperor Liu Ying, and one side would dominate. Then, his idea of using the Lu family's relatives group and the meritorious group to contain each other to ensure the smooth transition of Liu Ying's era will be in vain. Liu Bang meditated hard and came up with a plan.

Liu Bang chose an auspicious day for the zodiac and ordered the empress and the minister of civil and military affairs to come to the temple to worship. At the end of the sacrifice, in front of everyone, Liu Bang ordered the attendants to slaughter a white horse on the spot, put the hot horse blood into the wine jar, and pour a glass for each person. ”

Everyone present understood that this covenant was directed at the Queen. Whether the covenant works depends on who holds it and how it is used. Many times, the covenant may be just a few words that sleep in a pile of old papers, and when it is awakened by someone with a heart, it will become the sharpest sword.

After all, people are not as good as heaven.

Liu Bang never expected that Liu Ying had no ability, and his life was short, and he only lived to be twenty-three years old before he died of illness, eight years earlier than Empress Lu. The power of the government completely fell into the hands of Empress Lu. If it weren't for the efforts of the ministers, the story of Wang Mang's usurpation of the Han would have happened more than a hundred years in advance.