In June of the seventh year of Wude, Li Yuan took Li Shimin and Li Yuanji to spend the summer at Renzhi Palace. Renzhi Palace is located in the Phoenix Valley of Yuhua Mountain, more than 30 kilometers away from Chang'an City, and wude began construction in May 7 and was completed in June. The palace that can be built in a month will certainly not be luxurious, but Li Yuan solemnly took Li Shimin and Li Yuanji, two military leaders, to inspect it, which shows that the use of this palace is not simply to escape the summer, but to prepare for war. At that time, the Turks were rampant, and they did not know when they would suddenly come to Chang'an City, so Li Yuan took precautions and built a palace in the valley, so that in the event of an emergency, there could be a temporary shelter. At this moment, two of Li Jiancheng's close associates, Erzhu Huan and Qiao Gongshan, rushed in and reported something to Li Yuan, who was shocked and angry when he heard it.
Li Yuan came out to escape the summer, and all military and political affairs in Chang'an City were handed over to the crown prince Li Jiancheng. Li Jiancheng sent two of his cronies to send several carts of armor to Yang Wengan, the general of Gyeongju, who had been guarding the Eastern Palace, and asked him to send a group of people to Chang'an. The two cronies discussed halfway, this matter is very deep, if you don't get it right, you will lose your head, just out of Chang'an City is not far from the Renzhi Palace, and quickly came over to report Li Yuan. Li Yuan asked Li Shimin for consultation, and Li Shimin said that this was a naked rebellion. Take advantage of the fact that we are not in Chang'an City and want to do things. But Li Yuanji said that it was better to call my eldest brother over and ask about this matter. Isn't it clear if it is a rebellion? Li Yuan said that he was also right, so he sent someone to call Li Jiancheng. But he didn't say anything about what Yang Wen did, but casually made an excuse, such as we missed you and let you come over to see the mountain scenery.
Li Jiancheng quickly came with a large group of people and horses, settled the people and horses under the Yuhua Mountain, and brought more than a hundred people with him into the Renzhi Palace. When he came in, he saw that the atmosphere was very heavy, Li Yuan's face was angry, Li Shimin was happy, Li Yuanji was suffering from gains and losses, and he suddenly felt bad. Sure enough, Li Yuan asked about What Yang Wen had done, and Li Jiancheng breathed a sigh of relief, which could be explained. In order to strengthen the palace guards, I asked Yang Wengan for a few people. By the way, he was given a few pieces of armor as a reward. At this time, Li Shimin found that he was a little happy too early, because What Li Jiancheng said was seamless and flawless. First, Yang Wengan's people had not yet come to Chang'an City, and it was difficult to say whether they had come to rebel or qin wang. Second, Li Jiancheng, as the crown prince, stayed behind in the capital and had the power to ask Yang Wengan for people.
However, Li Shimin said that this matter cannot just listen to my brother's words, but must also find Yang Wengan, and the specific confrontation of people can understand what they are doing. As soon as Li Yuan heard that he was right, he put Li Jiancheng under temporary house arrest, after all, his suspicion of rebellion had not yet been lifted, and sent Li Yuanji's confidant Yu Wenying to Gyeongju to find Yang Wengan. As a result, Yu Wenying went wrong when she went to find Yang Wengan. According to the normal work process, Yu Wenying could only tell Yang Wengan that Li Yuan had asked him to go, and nothing else could be said. However, he told Yang Wengan about Li Jiancheng's house arrest, so Yang Wengan rebelled. According to Yang Wengan's view, Li Shimin had already taken action in advance, and Li Yuanji had taken control of Li Yuanjian and Li Yuanji, just waiting for him to throw himself into the net. In fact, Yang Wengan's reaction at this time was very normal, and after the change of Li Shimin's Xuanwu Gate, Luo Yi and Li Yan also reacted in this way.
Unfortunately, Yang Wengan misjudged the situation, and everything was not what he thought. After Yang Wengan rebelled, Li Jiancheng was passive, and his suspicion of rebellion was confirmed. Since you said that you and Yang Wengan were innocent, why did Yang Wengan rebel? There must be ulterior secrets between you. Li Yuan immediately ordered that Li Jiancheng be strictly guarded, and Li Shimin went to suppress the rebellion, and before leaving, he told Li Shimin that you have made clear about Yang Wengan's rebellion, and the position of prince is yours. Because if Yang Wengan and Li Jiancheng really rebelled, Li Jiancheng would have nothing to do with the prince. This matter was reasonable, and Li Shimin was happy to pick up Yang Wengan. Capture Yang Wengan alive and get rid of Li Jiancheng. However, just halfway through, Yang Wengan was killed by his subordinates. Li Shimin once again ate the pig to eat urine bubble empty happy.
Yang Wengan had no proof of death, and could only say what Li Jiancheng was. After all, Li Jiancheng was only suspected of rebellion, but there was no solid evidence. At this time, Li Jiancheng's teammates were not idle, and Li Yuanji quickly communicated with the four concubines of Li Yuan's harem and let them blow pillow wind. Then Li Yuan's close confidant Pei Huan Fenglun also came, trying to ensure that Li Jiancheng did not rebel. Unfortunately, at this time, Li Shimin was still on the way to recruit Yang Wengan, and he did not know anything about it, and when he returned to Chang'an, he found that the situation was developing in a way that was not conducive to him. I was so overwhelmed. There was no need to go personally to clean up Yang Wengan's work, and he could do it by sending someone at will. He should stay by Li Yuan's side and Li Jiancheng's side to prevent idle people from approaching.
Then Li Yuan summoned Pei HuanfengLun Xiao Yu Chen Shuda Li Jiancheng Li Shimin and others to hold a meeting to characterize the Yang Wengan incident. Yang Wengan's rebellion was his personal act and had nothing to do with Li Jiancheng. However, his rebellion was caused by the infighting between Li Jiancheng and Li Shimin. It was precisely because of the discord between Li Jiancheng and Li Shimin that Yang Wengan took risks in order to protect himself. Li Jiancheng was at fault, and his adviser Wang Jue could not escape his blame and was exiled. Li Shimin was at fault, and his adviser Du Yan (that is, Du Fu's grandfather) could not escape his blame and was exiled. The two of them each played fifty big boards, and Yang Wengan's rebellion case was thus solved.
So is Li Jiancheng innocent in this case, nor is it. He asked Yang Wengan for someone, indeed not to rebel, but to enrich the defense force of the Eastern Palace and prepare for the upcoming decisive battle with Li Shimin. At that time, the Prince's Palace of Qin Wangfu and the Qi Dynasty were raising dead soldiers, and they were all training killers to assassinate important people on the other side, and Wei Chigong was assassinated by Li Jiancheng's killer. Li Jiancheng had trained three hundred Turks to prepare to attack the Qin palace, but Li Shimin took the lead and went to Li Yuan to report him. Li Yuan hated the Turks and ordered Li Jiancheng to disband the three hundred men. Gyeongju, where Yang Wengan was located, was located near present-day Qingyang City, Gansu Province, and was at the forefront of the defense against the Turks. Li Jiancheng asked him to secretly train a group of people and send them to the Eastern Palace of Chang'an. Now that Li Yuan was gone, Li Shimin was gone, it was just the right time, so even the armor was sent over, and the gang wore armor into the East Palace. Unexpectedly, the two cronies he sent reported this matter to Li Yuan, and everything caused a chain reaction.