Battle of Hwando fortress (246) — the same event in Samguk Sagi and Zizhi Tongjian

Samguk Sagi: Guanqiu Jian took Hwando fortress and massacred its people; the king fled to Namokjeo.; Zizhi Tongjian: Youzhou Governor Guanqiu Jian…

What each source says

Samguk Sagi (History of the Three Kingdoms) · AD 246 · 환도

Guanqiu Jian took Hwando fortress and massacred its people; the king fled to Namokjeo.

冬十月,儉攻陷丸都城,屠之。
Location: 卷17 東川王 20年

Zizhi Tongjian (Comprehensive Mirror) · AD 246 · 丸都

Youzhou Governor Guanqiu Jian suppressed the invasion of Goguryeo King Wigung; Wigung was routed, and Guanqiu Jian at last slaughtered the Wandu and beheaded or captured several thousand.

幽州刺史毌丘儉以高句驪王位宮數為侵叛,督諸軍討之;位宮敗走,儉遂屠丸都,斬獲首虜以千數。
Location: 卷075 246년 단락1 제1문

Place: 환도

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