King Seocheon of Goguryeo (died 292, r. 270–292) was the 13th ruler of Goguryeo, the northernmost of the Three Kingdoms of Korea. He was the second son of King Jungcheon, and was confirmed as Crown Prince in 255. He ascended the throne upon his father's death in 270. In the first lunar month of 271, he married Usu, the daughter of the daesaja of Seo-bu, to be his queen.

In 280, the Sushen people invaded and the king sent his younger brother Go Dal-ga to repel them. Dal-ga took the fortress, Dallo and killed its lord, and moved about 600 Sushen households to southern Buyeo. Subjugating 6 or 8 villages of Sushen, King Seocheon made Dal-ga the Prince of National Peace (Anguk-gun) and gave him control of the army, and of the Sushen and Yangmaek tribes. In 286, Seocheon's younger brothers Go Il-u and Go So-bal led an insurrection, but the rebellion failed and they were slain.

King Seocheon died in 292, after 23 years on the throne. He was buried at Seocheonwon, and accordingly received the temple name of "Seocheon." His masoleum is considered to have been stolen around 296 when another nomadic people invaded Goguryeo in the reign of Bongsang.

西川王（西壤王，？ - 292年），高句丽第13任君主，名药卢、若友，270年-292年在位。255年被立为太子，270年继位。

280年，肃慎入侵高句丽。西川王派其兄弟抵御，用奇策杀死肃慎酋长，擒获肃慎600户并安置于扶馀南部。之后，西川王封其兄国家和平太子，掌管高句丽军队并负责管理高句丽境内的肃慎和濊貊部落。

西川王十一年（公元280年）冬十月，「肃慎来侵……达贾出奇掩击，拔擅卢城，杀酋长，迁六百馀家于夫余南乌川」。「乌川」可能在今伊通河上游段。

296年，慕容廆再次攻打高句丽，铲平了西川王的坟墓。

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