Why was the powerful Northern Zhou Dynasty usurped by Emperor Wen of Sui Dynasty? What's the connection between them?

Emperor Wen of Sui is related to the royal family of Northern Zhou Dynasty, and Emperor Wendi of Sui Dynasty is a consort.

Yuwen Yong, the emperor of the Zhou Dynasty, died, and his son Wen Bin succeeded to the throne for Xuan Di. The political situation in the Northern Zhou Dynasty was very unstable. After Xuan Di's death, his eight-year-old son Yu Wenchan succeeded Jing Di to the throne. In February, 58 1 year, under the direct planning of Liu Fang, Zheng Yi and Gao Ying, Emperor Wendi of Sui forced Jing Di to abdicate, become emperor on his own, changed his country name to Sui, and made Chang 'an his capital (later moved to Daxing). He is a famous Emperor Wen of the Sui Dynasty in the history of China.

Emperor Wen of Sui Dynasty abolished Xuan Di's strict rule and changed it to lenient rule. Amend the original law, make a "summary of criminal proceedings", and promulgate and implement it later. He is frugal himself and is respected both inside and outside the government.

Extended data:

In 577, Emperor Wudi of the Northern Zhou Dynasty led an army to destroy the Northern Qi and unify the North. In 578, Emperor Wu of Zhou died, and the word Prince succeeded to the throne, which was Emperor Wu of Zhou Xuan Di. Emperor Xuandi of Zhou made Yang Lihua the queen and appointed Emperor Wendi of Sui as one of the four assistant officials.

In 579, Xuan Di, the emperor of the Zhou Dynasty, passed it on to Yu Wenchan, a seven-year-old prince. Xuan Di, the Emperor of the Zhou Dynasty, claimed to be Emperor Tianyuan, and was still in charge of state affairs. In 580, Xuan Di was seriously ill, and summoned Liu Yun and Yan Zhiyi.

But when Liu Yun entered the palace, the emperor was already delirious. After comforting the emperor, Liu Yun left the palace and went back to his office to discuss with Zheng Yi, a civil history translator. The result of the discussion is that the governors of the country of Emperor Wendi of Sui Dynasty must be invited to assist the government, so that the two can share power.

At that time, the kings of the Northern Zhou Dynasty were enfeoffed to command troops everywhere. In order to consolidate his position, Emperor Wendi decided to control the kings. He issued an imperial edict, announcing that Zhao Wangzhao, Chen, Yue, Dai Wangda and Knee were buried in Beijing and then stayed in Beijing.

Soon, Wei Chijiong, the general manager of Xiangzhou, set out to conquer Emperor Wendi of Sui Dynasty and defend the kingship of Northern Zhou Dynasty. Soon, the troops loyal to Emperor Wendi defeated the Xiangzhou army led by the famous Wei Xiaokuan and wiped out Wei Chijiong.

Sima Yi in Yunzhou, with a genial smile, fled to Chen Nan. Wang Qian in Yizhou was also destroyed by Liang Rui, the general of the Northern Zhou Dynasty. Yang Jian acceded to the throne with the king and added nine tin, which shocked the world and successfully completed all the steps of usurping the throne.

References:

Baidu Encyclopedia-Sui Wendi