who was the most powerful emperor during sui dynasty
A chancellor of the Sui Dynasty (581 - 618) who rose in rebellion; the founder of the Tang Dynasty: 618 - 626: 2: Tang Taizong (Li Shimin) The second son of Li Yuan; a bold and powerful ruler good at both military strategy and Chinese calligraphy; His reign was called the Zhenguan Reign, which started the glorious period of Tang. 627 - 649: 3: Tang Gaozong (Li Zhi) The 9 th son of Li Shimin; considered a weak ruler because he was assisted by Empress Wu Zetian for most of his reign: 650 - 683: 4