관구검
The Wei army gave chase to the routed Goguyeo army after the battle of Liangkou. According to the Chinese source "History of Northern Dynasties", Guanqiu Jian reached Chengxian (赬峴), determined to be the present-day mountain pass Xiaobancha Ridge (小板岔嶺), also called Banshi Ridge (板石嶺). Since the mountainous region rendered the cavalry ineffective, the Wei army fastened the horses and chariots there and climbed up to mountain city of Hwando. Guanqiu Jian first struck the stronghold guarding the main city and then descended upon the capital, where the Wei army wrought much destruction, slaughtering and capturing over thousands of people. Guanqiu Jian specifically spared the tomb and family of Deukrae (得來), a Goguryeo minister who frequently remonstrated against aggression toward Wei and starved himself to death in protest when his advice went unheeded. The king and his family fled the capital.