During the reign of Tang Zhenguan, there was a rebellion in the Western Liang Dynasty. Li Shimin personally led an expedition and was besieged by the enemy commander Su Baotong in Suoyang City. The commander, Xue Rengui, was also killed by Su Baotong's poisonous sword and was on the brink of death. Xue Dingshan, the son of Xue Rengui, learned that his father had died and joined the Second Route Army to quell the rebellion. He went west to save his father.
During the reign of Tang Zhenguan, there was a rebellion in the Western Liang Dynasty. Li Shimin personally led an expedition and was besieged by the enemy commander Su Baotong in Suoyang City. The commander, Xue Rengui, was also killed by Su Baotong's poisonous sword and was on the brink of death. Xue Dingshan, the son of Xue Rengui, learned that his father had died and joined the Second Route Army to quell the rebellion. He went west to save his father.