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

Manchuria Manchuria is a historical region in northeast Asia encompassing the entirety of present-day northeast China and parts of the modern-day Russian Far East south of the Uda (Khabarovsk Krai), Uda River and the Tukuringra-Dzhagdy Ranges. The exact ...

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

Rouran The Rouran Khaganate ( Chinese: zh, c=, p=Róurán, label=no), also known as Ruanruan or Juan-juan ( zh, c=, p=Ruǎnruǎn, label=no) (or variously ''Jou-jan'', ''Ruruan'', ''Ju-juan'', ''Ruru'', ''Ruirui'', ''Rouru'', ''Rouruan'' or ''Tantan'') ...

, and the Khitan (on their southeast). They were attacked by both

Goguryeo Goguryeo (37 BC – 668 AD) (; ; Old Korean: Guryeo) also later known as Goryeo (; ; Middle Korean: 고ᇢ롕〮, ''kwòwlyéy''), was a Korean kingdom which was located on the northern and central parts of the Korea, Korean Peninsula an ...

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 ( zh, c=北魏, p=Běi Wèi), Tuoba Wei ( zh, c=拓跋魏, p=Tuòbá Wèi), Yuan Wei ( zh, c=元魏, p=Yuán Wèi) and Later Wei ( zh, t=後魏, p=Hòu Wèi), was an Dynasties of China, impe ...

. Didouyu were one of the northern branches of the

Xianbei The Xianbei (; ) were an ancient nomadic people that once resided in the eastern Eurasian steppes in what is today Mongolia, Inner Mongolia, and Northeastern China. The Xianbei were likely not of a single ethnicity, but rather a multiling ...

References

Sources

{{Mongolic ethnic groups , state=expanded Xianbei History of the Khitans