Gaogouli County (高句驪縣; Goguryeo County or Koguryo County in Korean) was a county under the administration of

Xuantu Commandery Xuantu Commandery (; ko, 현도군) was a commandery of the Chinese Han dynasty. It was one of Four Commanderies of Han, established in 107 BCE in the northern Korean Peninsula and part of the Liaodong Peninsula, after the Han dynasty conquered ...

located in southern Manchuria and the northern Korean peninsula.Barnes, Gina L. ''"State Formation in Korea"'', Curzon Press, 2001. p. 22 It was established by the

Han dynasty The Han dynasty (, ; ) was an imperial dynasty of China (202 BC – 9 AD, 25–220 AD), established by Liu Bang (Emperor Gao) and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–207 BC) and a warr ...

after its conquest of Gojoseon to keep the tribes of

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 ...

in check."고구려현", ''Encyclopædia Britannica Korean Edition''. In 75 BC, Xuantu Commandery was forced to move its seat of power from Fort

Okjeo Okjeo () was an ancient Korean tribal state which arose in the northern Korean peninsula from perhaps the 2nd century BCE to the 5th century CE. Dong-okjeo (Eastern Okjeo) occupied roughly the area of the Hamgyŏng provinces of North Korea, and ...

to Gaogouli County due to

Yemaek Yemaek or Yamaek () was an ancient tribal group in the northern Korean Peninsula and Manchuria who are regarded by some scholars as the ancestors of modern Koreans. They had ancestral ties to various Korean kingdoms including Gojoseon, Buyeo, Go ...

raids. From 75 BC to 12 AD, Goguryeo tribes were under administration of Gaogouli County and engaged in tributary relationship with the Han dynasty. In 12 AD, Goguryeo rebelled against the Han dynasty and established its own kingdom, and in 105 AD, began attacking the Chinese commanderies of Xuantu and

Liaodong The Liaodong Peninsula (also Liaotung Peninsula, ) is a peninsula in southern Liaoning province in Northeast China, and makes up the southwestern coastal half of the Liaodong region. It is located between the mouths of the Daliao River (the ...

. Later, in the 4th century, the State of Goguryeo conquered Xuantu Commandery, along with the Liaodong and

Lelang The Lelang Commandery was a commandery of the Han dynasty established after it had conquered Wiman Joseon in 108 BC and lasted until Goguryeo conquered it in 313. The Lelang Commandery extended the rule of the Four Commanderies of Han as far so ...

commanderies, ending Chinese rule over the

Liaodong Peninsula The Liaodong Peninsula (also Liaotung Peninsula, ) is a peninsula in southern Liaoning province in Northeast China, and makes up the southwestern coastal half of the Liaodong region. It is located between the mouths of the Daliao River ...

and the Korean Peninsula.

Notes

{{Asia-geo-stub Former commanderies of China in Korea