Gaogouli County (Goguryeo County or Koguryo County in Korean) was a county under the administration of Xuantu Commandery in southeastern Manchuria.[1][2][3] It was established by the Han dynasty after its conquest of Gojoseon to keep Goguryeo tribes in check.[4] From 75 BC to 12 AD, Goguryeo tribes were under administration of Gaogouli County and engaged in tributary relationship with the Han dynasty.[3] In 12 AD, Goguryeo rebelled against the Han dynasty and established its own kingdom, and in 105 AD, began attacking Chinese commanderies of Xuantu and Liaodong.[3] Centuries later, in the 4th century, Goguryeo conquered Xuantu commandery, along with Liadong and Lelang commanderies, ending Chinese rule over Manchuria and the Korean peninsula.
