Li Yuanchang, the king of the Han Dynasty, was killed, Hou Junji, the secretary of the military department, was beheaded, and the rest of Du He, Li Anyan and others were also ambushed, but Li Chengqian, the culprit, was only demoted to a concubine, but he saved his life.

Li You, the king of Qi, and Li Chengqian, the crown prince, rebelled one after another, shaking the Tang Dynasty and casting a shadow on Chang'an, and the impact will last for a long time.

Moreover, with the promotion of Li Taijin, the king of Wei, as the new crown prince, the changes in the court came soon.

In fact, this is also Xu Qilin's contribution to Li Tai's advice. The foreign vassals did not make friends with the ministers, did not cultivate forces, and did not confront Li Chengqian head-on, nor did they arouse the suspicion of His Majesty Li Er.

Therefore, for Li Tai, who was newly established as the crown prince, His Majesty Li Er personally selected important ministers for him as teachers and staff, not only to train the future team, but also to continue to strengthen education, and not to abolish a son because of the succession to the throne.

First of all, Ma Zhouma is the secretary, who is a scholar and a prince, and the right concubine of the prince, and also the chief of the Wei Palace.

Soon after, His Majesty Li Er ordered the Great Secretary of Ma to go to the East Palace every other day with Liu Xun, the waiter of the Yellow Gate, Cen Wenwen, the waiter of the Zhongshu, and Chu Suiliang, the guest of the prince, to discuss political affairs and study knowledge with the crown prince Li Tai.

Li Sipang finally understood the truth of what Xu Qilin said, and he didn't need to bother to make friends at all, you see what the important ministers who were sent to his side by his father now are, and then look at those who had the heart of refuge before, the difference is really thousands of miles.

And Li Sipang is also a smart person, he maintains enough respect for these important ministers, and his posture is very low, but he doesn't dare to fight and kill even teachers like his eldest brother.

As the crown prince, of course, he wants to stay in Chang'an for a long time and accompany his father and the emperor for a long time. But Li Chengqian was deposed and Li You was beheaded, after all, it was not the time for him to celebrate the crown prince.

Although he wanted to keep a low profile, His Majesty Li Er was gracious, and after Li Sipang moved into the East Palace, a small banquet was held, and only royal relatives were invited, as well as those important ministers who would teach the prince in the future.

And Xu Qilin came to the East Palace on this day and participated in the banquet.

There were not many people attending the banquet, and although the haze had not dissipated, His Majesty Li Er also felt that he couldn't be too sorry for his fat son, even if it was just a simple ceremony.

"This is—" Crown Prince Li Tai looked at the four-wheeled carriage that entered the East Palace, very curious.

The guests also showed a look of surprise, and when they came to the banquet, they didn't need to take any expensive gifts, as if they were stammering. Only Xu Qilin's approach is surprising.

Xu Qilin explained with a smile: "This is a newly made carriage from the Dayingku Workshop, and Xia Guan feels that it is very comfortable to sit on, so he wants to use His Majesty and His Royal Highness the Crown Prince to make a propaganda and open up sales." ”

Li Sipang scratched his head, and he was helpless about this statement. Of course, he also knew that this was just Xu Qilin joking, but this carriage should have only been sent to his father and him, which shows that it is worth a lot.

Xu Qilin arched his hand to the guests again, and said: "You ministers can watch it closely, or you can try to sit down, and if you think it is good, you will praise the lower officials." ”

Ma Dami smiled and nodded, gave in politely, and then took the lead and walked over, taking a closer look around the four-wheeled carriage.

In the ancient carriage, Xu Qilin was really uncomfortable. Similarly, at home, he does not like to sit cross-legged or kneel.

Since the high-legged tables and chairs have gradually become popular, it can be regarded as a lot of relief for Xu Qilin.

This four-wheeled carriage with metal axles and shock-absorbing springs was innovated by his joint research experiments with craftsmen in Xin'an.