When Li Yuan heard that Yang Di was strangled by Yu Wenhuaji in Jiangdu, he ousted You Yang and established the Tang Dynasty, known as Tang Gaozu in history. Although dead, Luoyang, the east capital, is still in the hands of his grandson Yang Dong and his minister Wang. Wang Shichong made Yang Dong the emperor, the king of the Sui Dynasty, and continued to fight the insurgents under the banner of the Sui Dynasty. Send people to eliminate the insurgents and separatist forces, until 623 AD, Tang's war in China basically ended.