How many emperors were there in the Sui Dynasty?

Sui Wendi, Sui Wendi. The reign time of the founding emperor of Sui Dynasty was from the first year of reign (58 1) to the fourth year of Renshou (604).

Yang Guang and Yang Di (reigned 604-6 18) were the second emperors of the Sui Dynasty.

Emperor Yangdi You Yang (reigned 6 17 ~ 6 18) was the third emperor of the Sui Dynasty.

Extended data:

In February of 58 1 year, Emperor Jingdi of the Northern Zhou Dynasty abdicated in Sui Wendi, and the Northern Zhou Dynasty perished. Yang established the title of "Sui" and made its capital Daxing City.

Later, in 589, the Chen Dynasty perished in the south, and China was unified, ending nearly 300 years of division since the end of the Western Jin Dynasty. In 605 AD, after Yang Di ascended the throne, Yuwen Kai was ordered to build Luoyang as the eastern capital, and in 606, he issued an imperial decree to move the capital to Luoyang. During the reign of Emperor Wendi of Sui Dynasty, the people's livelihood was rich, the people lived and worked in peace and contentment, and the political stability created the prosperity of the emperor's rule.

During the reign of Yang Di in Sui Dynasty, the Grand Canal was built, but the excessive consumption of national strength led to the rebellion of the people and nobles at the end of Sui Dynasty.

In 6 18, Yu Wenhuaji and others launched a mutiny and killed the emperor Yang Di; Emperor You Yang of Sui Dynasty abdicated Li Yuan, who proclaimed himself emperor and founded the Tang Dynasty.

In 6 19, Emperor Yang Dong of Wang Jianli was also abolished, and the Sui Dynasty perished, which lasted for 38 years.

References:

Baidu Encyclopedia-Sui Dynasty