He crossed the Great Tang and became the King of Shu, Li Ke.
At this time, because Li Ke had the blood of the previous dynasty, Prince Li Chengqian and Zhangsun Wuji framed Li Ke for rebellion. The minister was afraid that Li Ke would gain power and hit him when he was down. Li Shimin looked on coldly and did not care about family ties.
The entire court wanted Li Ke dead, so what should he do?
Naturally, he wanted to overturn the heavens and overthrow this emotionless imperial court.
He would kill Crown Prince Li Chengqian first, then charge out of Chang ’an, raise the flag, sweep across the Great Tang, and rebuild a new dynasty in the name of Li Ke!
Li Shimin said,"I am about to die. I regret it!"”