义渠 / Yiqu
义渠 / Yiqu appears in 《资治通鉴·周纪》35丨历史上第一骑兵教父是他？ as a powerful western neighbor in 秦国’s rear. The episode says Yiqu had grown strong in the Eastern Zhou period, its ruler claimed kingly status, and it learned from the central states by building cities and settling more permanently.
The source treats Yiqu as a structural pressure point for Qin rather than a one-episode enemy. Because Qin’s main strategic attention is still directed eastward against 魏国 and the Hexi frontier, Qin has reason to avoid a full two-front conflict when possible. Its partial victory in Zhou Xian Wang’s forty-second year occupies some Yiqu land and folds it into Qin’s county system, but Yiqu’s submission is not the same as final extinction.
Yiqu therefore supports Qin frontier buffer management in the wiki: a strong rear frontier can be temporarily soothed, punished, or partially absorbed, but it remains a live constraint on eastward strategy.
《资治通鉴·周纪》48丨君王为啥不能传位宰相 adds a source-scoped tension in Zhou Nan Wang’s first year. The episode says 秦国 attacks a rebelling Yiqu, takes twenty-five cities, and explains the event as a revolt after Yiqu had already been destroyed and turned into a Qin county. Because Zhouji 35 presents the earlier attack as partial incorporation and Zhouji 85 later presents final destruction, this page keeps the Zhouji 48 wording as a chronology caution rather than replacing the broader Yiqu arc.
《资治通鉴·周纪》85｜宣太后为何私通30年后暗杀了老情人？ closes that live constraint. The episode says the Yiqu king’s long relationship with 芈八子 / 宣太后 helped keep Qin’s rear quiet during 秦昭襄王’s long campaigns, though it does not claim certainty about personal motive. Once Qin judged the conquest ripe, Xuan Taihou killed the Yiqu king at 甘泉宫, Qin destroyed Yiqu, and the old frontier became 北地郡 within a northern line including 陇西郡 and 上郡.
Connections
- 秦国 - neighboring state and eventual opponent.
- 秦国后方边患管理 - concept extracted from Qin’s Yiqu policy.
- 秦国东进压力 - eastern strategic priority that makes Yiqu a rear-frontier problem.
- 周显王 and 《资治通鉴》 - annalistic frame.
- 芈八子 / 宣太后, 甘泉宫, 北地郡, 陇西郡, 上郡, and 亲密关系式边患安抚 - Zhouji 85 final destruction and commandery absorption.