The Didouyu (地豆于) or Didougan (地豆干) was a tribe during the 5th-century in west

Manchuria Manchuria is an exonym (derived from the endo demonym "Manchu") for a historical and geographic region in Northeast Asia encompassing the entirety of present-day Northeast China (Inner Manchuria) and parts of the Russian Far East ( Outer ...

. Their territory included the Tujue (Eastern Turk, on their west), the Rouran, and the

Khitan Khitan or Khitai may refer to: *Khitan (circumcision), the Islamic circumcision rite *Khitan people, an ancient nomadic people located in Mongolia and northern China *Liao dynasty (916–1125), a dynasty of China ruled by the Khitan Yelü clan **Nor ...

(on their southeast). They were attacked by both

Goguryeo Goguryeo (37 BC–668 AD) ( ) also called Goryeo (), was a Korean kingdom located in the northern and central parts of the Korean Peninsula and the southern and central parts of Northeast China. At its peak of power, Goguryeo controlled mos ...

and Rouran in 479, allied for this operation. In fear, a big part of Kithan fled southward to submit to Northern Wei. Didouyu were one of the northern branches of the

Xianbei The Xianbei (; ) were a Proto-Mongolic ancient nomadic people that once resided in the eastern Eurasian steppes in what is today Mongolia, Inner Mongolia, and Northeastern China. They originated from the Donghu people who splintered into t ...

References

Sources

{{Mongolic ethnic groups , state=expanded Xianbei Khitan history