The crown prince Li Jiancheng is actually not incompetent, but in front of this too dazzling younger brother, his light is covered by Li Shimin. Li Jiancheng's subordinates also have many ministers, fierce generals, and Lei Yongji, the first person to attack Chang'an City, is Li Jiancheng's person. And Wenchen Wei Zheng, Wang Qi and others are also first-class talents.

When Li Shimin swept away Dou Jiande, Wang Shichong and other forces, he wore a golden armor and entered Chang'an City with great force. Li Jiancheng seemed to feel the threat of Qi Cold. Seeing Li Shimin's repeated miraculous achievements and growing reputation, for the sake of the imperial power, he decided not to sit still and give it a go.

Wei Zheng Wang Qi was also the main adviser of the East Palace, and the two suggested to the crown prince, "Although His Royal Highness is the crown prince, he cannot suppress the king of Qin without great merit." Liu Heimin can't become a climate, so it's better to use him to practice his hands, establish meritorious deeds, buy people's hearts, and consolidate the status of the prince. Li Jiancheng adopted the opinions of the two and took the initiative to ask for help to meet Liu Heimin. Li Yuan has always wanted to consolidate the position of the crown prince, but he can't ask for it. As a result, Li Jiancheng replaced Li Shimin and became the main force in the conquest of Liu Heimin.

Li Jiancheng did not disappoint Li Yuan either, and soon, he defeated Liu Heimin. In the process of escaping, Liu Heimin was caught by his subordinate Zhuge Dewei and surrendered to Li Jiancheng with him. Li Jiancheng was afraid that Liu Heimin would have a long night and a lot of dreams, so he killed him in Zhaozhou. This kid said something funny before he died, "I originally wanted to grow vegetables in my hometown, but I was fooled by Gao Yaxian and these people into getting on this road!" Liu Heimin didn't reflect on it until he died, and the blisters on his feet came out of his own.

As soon as Liu Heimin died, Xu Yuanlang fled in a hurry under the siege of Li Shentong and Li Shiyun, and was later killed. Most of Shandong has returned to the territory of the Tang Dynasty.

Li Jiancheng finally won back a city in the competition with Li Shimin.

Under the continuous attacks of various generals such as Li Jiancheng and Li Shimin, in a few years, the rebel forces in Datang were extinguished one after another. More than 400 years after the Han Dynasty, another powerful empire stood majestically.

The prosperity of the Tang Empire is far greater than that of the previous dynasty, and how to inherit such a huge empire, Li Yuan has already had to face it.

The intriguing struggle between Li Jiancheng's prince group and Li Shimin's hero group has already begun. The seemingly calm Tang Empire is actually surging in the dark tide.

Li Yuanji, the king of Qi, has always been a staunch supporter of the crown prince. Once, Li Shimin followed Li Yuan to the Qi Palace, and Li Yuanji suggested to Li Jiancheng to get rid of Li Shimin, and Yu Wenbao, who had ambushed the guards, was in the bedroom, and as long as Li Jiancheng nodded, Li Yuanji began to act. But Li Jiancheng did not have the ruthlessness of a person who did not achieve great things, and said to Li Yuanji: "Daddy is already old, don't scare him, let's talk about it later!" Li Yuanji was so angry that he said: "If I don't do it for you, can I do it?" What do you think I'm going to get by doing this? ”

Although Li Jiancheng did not agree with Li Yuanji to assassinate Li Shimin, he clearly knew that sooner or later there would be a break between the two. In order to increase his own weight, Li Jiancheng recruited more than 2,000 brave and warlike soldiers to enrich the East Palace. The long-term guard of the East Palace was added, and this matter was later reported to Li Yuan, who reprimanded Li Jiancheng and did not treat him well.

In fact, Li Jiancheng did not have a white truth, the soldiers are not expensive, the battle for imperial power is by no means to lead the troops to fight, the more soldiers the better, the emphasis is on a "plan", the shot is fast and ruthless. He was far inferior to Li Shimin in this regard, Li Shimin launched the Xuanwumen Rebellion, and there were seven or eight core figures, and there were more than 70 soldiers involved that day. And Li Jiancheng blatantly recruited thousands of people to stay in the East Palace for a long time, not to mention that it would alarm Li Shimin, it is estimated that even Li Yuan has to prevent him from seizing power.

Just when the competition between the two was heating up, Li Jiancheng suddenly did a stupid thing and almost didn't let him lose the crown prince.

In the seventh year of Wude, that is, in 624 AD, Li Jiancheng sent his henchman Yang Wengan to privately recruit soldiers and send them to Chang'an. He also sent someone to Yang Wengan to send armor to arm the army. This matter was reported to Li Yuan again, saying that Yang Wengan wanted to rebel. Li Yuan heard it, "This is worth it, I'm not dead yet, you just want to be on top, arrest!" ”

Li Jiancheng was imprisoned by Li Yuan. When Yang Wengan saw that Li Jiancheng was arrested, he knew that the matter had been leaked, and hurriedly rebelled. Li Yuan discussed with Li Shimin, and Li Shimin felt that Yang Wengan was a little deflated three, and he could be killed by sending a general at will. Li Yuan is scheming, "No! Yang Wengan implicated your brother in this matter, I'm afraid that there will be many people who respond to him, so you should go! Do this well, the prince is you. I can't kill my son with my own hands, and when the time comes, I will arrange your brother to be the king of Shu. If he is honest in that place, he will keep him. If he's not honest, you can clean him up! ”

As soon as Li Shimin heard the music, he immediately sent troops to destroy Yang Wengan. But as soon as Li Shimin left on his front foot, Li Yuan's pillow wind blew again, and those concubines and Li Yuanji began to take turns to ask for Li Jiancheng's life.

Li Yuan's ears were quite soft, and in a blink of an eye, he let Li Jiancheng go, scolded his Zhongyun Wang Jue, made him carry a black pot, and sent it to the (rare) state.

Li Jiancheng secretly plotted twice, but was betrayed by his own people, which confirmed a very terrifying thing, that is, Li Jiancheng's side was densely covered with Li Shimin's eyeliner. This is simply the plot of Infernal Affairs, and Li Jiancheng's every move is fed back to Li Yuan. In Li Shimin's eyes, Li Jiancheng is running naked.

Li Shimin also has a chess piece placed in Li Jiancheng's inner circle, which was enabled in the Xuanwumen Change, and it was this chess piece that played a vital role in this palace gate bloodbath, allowing Li Shimin to win thrillingly. Li Jiancheng never thought that he had been in Li Shimin's house two years ago.

Li Jiancheng has always had the advantage in this confrontation. Li Yuan once trained in the south of the city, and his three sons were all by his side. Li Yuan wanted to test his three sons, so he let them ride horses and compete in archery. Li Jiancheng played a trick and gave Li Shimin a bad horse to ride, wanting him to make a fool of himself. This horse likes to stumble, as soon as Li Shimin gets on the horse, it falls, Li Shimin is agile, immediately jumped down, and did not hurt him several times. And proudly said to Yu Wenhua: "If you want to harm me like this, it is impossible!" ”

These words were passed on to Li Yuan by the concubines, and they became "I have my own destiny and can be the emperor, how can this horse harm me." "Rumors are fiercer than tigers, and the rumors spoken by beautiful women are as fierce as tigresses.

Li Yuan is old, and the last thing he wants to hear is that his son said about succession, isn't this a curse for me to die early? So he scolded Li Shimin again, "Why are you in a hurry? Is the Son of Heaven something you can do if you want to? Li Shimin was so frightened that he quickly knelt down and pleaded guilty. Fortunately, at this time, there was another border police coming, and the Turkic invasion, Li Yuan had to rely on Li Shimin's military talent to let Li Shimin go.

In this way, again and again, Li Shimin was tortured very devastated, and Li Yuan's practice of not saying it or not, made Li Shimin completely lose his patience. It is impossible to make Lao Li Tou change the crown prince, the road to power has always been sacrificed with blood, and it seems that it is necessary to shed some blood.

A plan to seize power and compete for succession quietly took shape in Li Shimin's heart.