Haiyan

Haiyan represented Jurchen groups along the northern Hamgyong coast and southern Tumen bank. In 1337 their villages were under Yuan commanders of the Ssangseong administration, which Goryeo retook in 1356.

Around 1388 Mengtemu's father led the Odoli to Womuho. Mengtemu paid tribute to Joseon in 1395, accepted Ming office in 1405 and later headed the Jianzhou Left Guard; he and his eldest son were killed in a feud in 1433. That year Joseon attacked Jurchen strongholds, and its six garrisons subsequently established Korea's northern frontier.