On the fifth day of the first month of the sixth year of Wude (623), Liu Heimin came back from the Turkic counterattack this time, and the greatest ability he showed was to escape, he threw off the pursuers and successfully escaped to Raoyang (now Raoyang, Hebei), leaving the soldiers who followed him, few and pitiful, and the three-year-old children could count them, only more than 100 cavalry.

Everyone is dying of hunger, and if they don't eat, they will definitely die. All of them were hungry, and their eyes were green at the Raoyang City Gate, and they were eager to find food in the city.

It just so happened that Zhuge Dewei, the assassin of Raozhou, was appointed by Liu Heimin, and when he saw that the old leader was coming, he hurriedly went out of the city to greet them and invite them into the city.

At this moment, Liu Heimin should be drooling happily. However, if he has to trust people easily, he is not Liu Heimin. He was worried about fraud, so he refused Zhuge Dewei's invitation in distrust.

Zhuge Dewei is a veritable drama master, and he performed his sincerity and respect to the fullest, crying and insisting on inviting Liu Heimin, and almost fainted from crying.

Liu Heimin estimated that he couldn't see people crying, and it was a man who shed tears in front of him, so he believed him.

Liu Heimin was tired and walked into the city gate with the soldiers, Zhuge Dewei cried to give them food, but before it was served, Zhuge Dewei's face changed, comparable to the June sky.

Zhuge Dewei commanded the troops to arrest Liu Heimin.

What else can Liu Heimin say except for despair, hating himself for believing in the tears of a man like Zhuge Dewei?

Zhuge Dewei happily sent Liu Heimin to Li Jiancheng and asked for credit.

In February, Li Jiancheng beheaded Liu Heimin and his younger brother Liu Shishan in Zhaozhou.

The crown prince Li Jiancheng pacified Shandong, which was enough for him to return to the court for a while, mainly to show off in front of his younger brother Li Shimin.

However, since Li Shimin pacified Dou Jiande and Wang Shichong, Li Shimin, who has great military exploits, has become the mainstay of the Tang Dynasty, just like the "pillar" of the Tang Dynasty's power "stage". Li Jiancheng's meager exploits this time were completely covered by Li Shimin's brilliance, and his weight in the hearts of the people of the world was unmatched, including the crown prince Li Jiancheng.

At this time, almost all the rivers and mountains of the Sui family have moved to the surname Li, and now it is the world of the Li family, who will be in charge of this world in the Li family, they will fight within themselves, and they are no softer than they beat people with foreign surnames. Conspiracy, bloodshed and murder are equally outrageous, and it is even easier to make people's hearts crunch, after all, this tearing, the blood on everyone's hands, is loved by relatives and friends.

Cao Zhi, the baby son of Cao Cao, who was famous during the Three Kingdoms period, used "beans as fuel to cook beans" as a metaphor for brothers killing each other...... This has always happened in the royal meeting, and old foxes like Li Yuan couldn't control it back then.

Or, Li Yuan should be blamed for overcontrolling, leading to a terrifying brotherly fight!

Li Yuan stubbornly appointed his eldest son Li Jiancheng as the crown prince, and he inherited the "tradition", which was done by the emperors of the past and by the emperors of the future. Li Yuan faced the canonization of the crown prince, he didn't use his brain to come up with some novel methods, such as that son was capable and had great merit, so he made that one the prince.

For more than 2,000 years from the Zhou Dynasty to the Ming Dynasty, the succession to the throne generally adopted the system of openly establishing a prince in advance to prepare for the inheritance of supreme power.

When the old emperor elected the crown prince, he did not choose the candidate's quality, virtue and talent, but based on the principle of his mother's status and the chronology of the candidate.

This rule can be summed up as "the eldest is not virtuous, and the eldest is not virtuous", which means that among the children born to the emperor's many wives, the eldest son of the first wife is given priority, and the eldest son is given priority among the concubines. Mrs. Zheng has no children, so she will consider the concubines born to other concubines. Therefore, before the establishment of the son is valued by the mother, and after the establishment of the mother is based on the son is expensive. This is the reason why there are so many scumbag emperors in the history of our country.

Therefore, Li Yuan's stubbornness to make Li Jiancheng the crown prince has his basis and considerations, and he believes that relying on this "tradition" to establish his eldest son Li Jiancheng as the prince, the brothers will not kill each other.

Li Shimin was able to become a rare capable emperor in the ages, and it was all up to him to break this traditional rule and give full play to his ability, tolerance and wisdom that went deep into the bone marrow to benefit the people of the world.

This process of transformation is painful and cruel for Li Shimin, and it makes his psychological tolerance reach the limit!