Let's start with Xu Maogong, who was not a subordinate of Li Shimin at first, but was persuaded by his brother to go to Li Shimin. From then on, he was loyal to the Li family and became the prime minister after the Tang Dynasty. Even so, he doesn't look conceited. He is humble and serious, and he is more loyal to the Li family.
Xu Maogong, who devoted his life to the Tang Dynasty, had been worried about one thing all his life. In particular, he repeatedly asked his younger brother to kill anyone who was conceited and capable at home. However, his younger brother did not take this matter seriously, which indirectly led to the collapse of the Xu family.
Speaking of which, I want to talk about Xu Maogong's grandson Xu Jingye. This man is talented but conceited, which others can't see, but Xu Maogong knows it very well. He is the man that Xu Maogong said he would kill. After Wu Zetian came to power, Xu Jingye refused to accept Wu Zetian's rule and launched a rebellion. At that time, his brothers, Tang, Du, and Luo all rebelled with him.
The mutiny was doomed to failure from the beginning. After many battles between Li and Li Xiaoyi, until the last time, Li's military forces had been deployed for a long time, and the soldiers were exhausted. Once again, it was attacked by fire and defeated.
According to "Old Tang Book", "Offering does not follow the plan. As for the family, I am sad! " If it weren't for Li's arrogance and rebellion, the whole family wouldn't be implicated and the dead wouldn't be at peace.