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 M ...

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

Rouran The Rouran Khaganate, also Juan-Juan Khaganate (), was a tribal confederation and later state founded by a people of Proto-Mongolic Donghu origin.*Pulleyblank, Edwin G. (2000)"Ji 姬 and Jiang 姜: The Role of Exogamic Clans in the Organizat ...

, and the Khitan (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 Wei (), known in historiography as the Northern Wei (), Tuoba Wei (), Yuan Wei () and Later Wei (), was founded by the Tuoba (Tabgach) clan of the Xianbei. The first of the Northern dynasties, it ruled northern China from 386 to 535 during t ...

. 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 th ...

References

Sources

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