The third son, Xue Gang, is brave and strong, with a rough character. He loves to be attacked by others and is quite famous in Chang 'an. He is nicknamed "Tongcheng Tiger".
Later, in an incident, the prince was kicked to death by mistake. At that time, Emperor Li Zhi was upstairs enjoying the scenery. As the people were frightened, the viewing building in Li Zhi was hit and collapsed. Li Zhi fell from the upstairs and soon died.
According to the laws of the Tang Dynasty at that time, Xue Gang broke the law by himself, which would implicate nine families. Li Zhi confessed to his eldest son before his death. The Xue family is a hero from generation to generation and loyal to the Tang Dynasty. Therefore, Xue Gang only investigated Xue Gang, but not Xue Gang's family, when he kicked the prince to death and surprised the collapse of the Holy Drive.
As soon as this imperial edict came out, it was highly praised by the Tang Dynasty. However, Zhang Wuyi, who was in charge of state affairs at that time, was not reconciled. They have long regarded the Xue family as a thorn in the side and a thorn in the flesh. Just take this opportunity to get rid of the Xue family.
So Zhang Wu and his party went to talk to Wu Zetian about this matter, demanding that the Xue family should act according to law. In fact, Wu Zetian also wants to get rid of Xue Jia and the founding heroes and their descendants, and Wu Zetian has an unfaithful heart, and she also wants to taste the taste of being an emperor.
It's just that Xue Gang is in trouble. Therefore, Wu Zetian ordered the killing of 285 families in Xue Dingshan. Its means are even more cruel. In Xue Dingshan, two Liao palaces dug a big pit on the spot and buried the life of the Xue family. Xue Gang, the principal offender of this incident, escaped after committing the crime and survived.
However, revenge for murder also led to Xue Gang's later opposition to the Tang Dynasty.