Duan Sui (died 386) was a ruler of the Chinese

History of China

Chinese civilization originated in various regional centers along both the Yellow River and the Yangtze River valleys in the Neolithic era, but the Yellow River is said to be the Cradle of Chinese Civilization. With thousands of years of continuous history, China is one of the world's oldest...

/Xianbei

Xianbei

The Xianbei were a significant Mongolic nomadic people residing in Manchuria, Inner Mongolia and eastern Mongolia. The title “Khan” was first used among the Xianbei.-Origins:...

 state Western Yan

Western Yan

The Western Yan was a state of Xianbei ethnicity during the era of Sixteen Kingdoms in China. It was founded by Murong Hong in 384 in the aftermaths of Former Qin's defeat by Jin Dynasty at the Battle of Fei River, with the stated intent of permitting the Xianbei, whom Former Qin's emperor Fu...

. He was the only ruler of the short-lived state who was not a member of the Murong

Murong

Murong refers to an ethnic Xianbei tribe who are a Mongolic people attested from the time of Tanshihuai . Different strands of evidence exist linking the Murong to the language family of Mongols. Murong is also a Chinese surname...

 clan, the imperial clan of Former Yan

Former Yan

The Former Yan was a state of Xianbei ethnicity during the era of Sixteen Kingdoms in China.Initially, Murong Huang and his son Murong Jun claimed the Jin Dynasty -created title "Prince of Yan," but subsequently, in 352, after seizing most of the former Later Zhao territory, Murong Juan would...

.

He was a general under the emperor Murong Chong

Murong Chong

Murong Chong , formally Emperor Wei of Yan , was an emperor of the Chinese/Xianbei state Western Yan. He was a son of the Former Yan emperor Murong Jun and a younger brother of Former Yan emperor Murong Wei....

, whose people wanted to return east to their homeland but who, after capturing the Former Qin

Former Qin

The Former Qin was a state of the Sixteen Kingdoms in China. Founded by the Fu family of the Di ethnicity, it completed the unification of North China in 376. Its capital had been Xi'an up to the death of the ruler Fu Jiān. Despite its name, the Former Qin was much later and less powerful than...

 capital Chang'an

Chang'an

Chang'an is an ancient capital of more than ten dynasties in Chinese history, today known as Xi'an. Chang'an literally means "Perpetual Peace" in Classical Chinese. During the short-lived Xin Dynasty, the city was renamed "Constant Peace" ; yet after its fall in AD 23, the old name was restored...

, wanted to settle in Chang'an, against the wishes of his people. In spring 386, the general Han Yan (韓延) assassinated Murong Chong in a coup and supported Duan Sui as the Prince of Yan. About a month later, however, the officials Murong Heng (慕容恆) and Murong Yong

Murong Yong

Murong Yong , courtesy name Shuming , was the last emperor of the Chinese/Xianbei state Western Yan. He was the grandson of Murong Yun , the uncle of Former Yan's founder Murong Huang. As a member of Former Yan's imperial clan, he was moved to Guanzhong, Former Qin's capital region, when Former...

 ambushed Duan Sui and killed him. They supported Murong Yi

Murong Yi

Murong Yi was a ruler of the Chinese/Xianbei state Western Yan. He was a son of the Former Yan Prince of Yidu, Murong Huan , a son of the founder of Former Yan, Murong Huang....

, the son of the Former Yan Prince of Yidu Murong Huan (慕容桓) as the new Prince of Yan.

Reference

• Zizhi Tongjian
  Zizhi Tongjian
  The Zizhi Tongjian was a pioneering reference work in Chinese historiography, published in 1084, under the form of a chronicles. In 1065 CE, Emperor Yingzong of Song ordered the great historian Sima Guang to lead with other scholars such as his chief assistants Liu Shu, Liu Ban and Fan Zuyu, the...
  
  , vol. 106.