杜钦 / Du Qin (Western Han)

Overview

杜钦 / Du Qin enters the wiki through Hanji 505 as 王凤’s adviser who answers 汉成帝’s eclipse-earthquake inquiry by blaming harem favoritism, jealousy, and succession danger rather than Wang-family outer-relative power. Hanji 510 adds a diplomatic-risk role: Du Qin and 谷永 advise Chengdi not to accept 一言莫衍’s Xiongnu defection because the gain could damage the submitted chanyu relationship. Hanji 504 backfills the earlier harem-regulation layer, while Hanji 517 shows him limiting a costly escort to remote 罽宾.

Current Profile

The sources give Du Qin as a Wang Feng-side adviser rather than a complete biography. In Hanji 504, he diagnoses Chengdi’s famous desire as a political problem and recommends a “nine wives” rule: enough consorts for heir production, but no indefinite harem expansion. The proposal fails because the dowager says Han has no such precedent and Wang Feng cannot create law by himself, but it reveals Du Qin’s characteristic method: he turns private conduct into public risk through ritual, precedent, and succession language.

In Hanji 505, the same harem-and-heir logic appears inside disaster interpretation. Du Qin and Gu Yong answer omen pressure by naming palace jealousy and heir risk rather than the Wang-family power field. In Hanji 510, the advisory style shifts to frontier diplomacy: Du Qin and Gu Yong argue that accepting one Xiongnu minister’s defection could damage the trust of an entire submitted chanyu relationship.

Hanji 517 adds the inverse diplomatic calculation. Instead of paying a small reception cost to protect a high-value frontier relationship, Du Qin argues against a dangerous full escort for a remote, unreliable polity whose submission has little effect on regional security. His compromise—escort Jibin’s merchant-like mission only to Pishan—matches ceremony to practical reach rather than choosing either unlimited protection or no contact.

Key Characteristics

• Western Han adviser in Wang Feng’s orbit.
• Uses ritual precedent to frame ruler desire as a harem and succession risk.
• Uses disaster-omen interpretation to discuss harem favoritism and heir danger.
• Helps redirect pressure from outer relatives to consorts in the Chengdi omen field.
• Helps argue for diplomatic restraint when accepting a defector could damage a larger frontier relationship.
• Distinguishes strategically important diplomatic trust from low-value prestige expenditure.
• Uses a geographically bounded escort as a compromise between ritual reception and operational risk.

Evidence

• Harem regulation proposal: Hanji 504 says Du Qin urges Wang Feng to limit Chengdi through an ancient “nine wives” model while Chengdi is young and childless.
• Preventive succession logic: Hanji 504 says Du Qin worries about female favor, empress suspicion, consort ambition, and heir disorder.
• Political dependence: Hanji 504 presents Du Qin and Wang Feng as mutually useful: Wang Feng needs ability, while Du Qin needs access.
• Omen answer: Hanji 505 says Du Qin and Gu Yong interpret the eclipse and earthquake through harem jealousy and favored-woman danger.
• Political effect: Hanji 505 treats that interpretation as shifting pressure away from Wang-family outer-relative power.
• Defection advice: Hanji 510 says Du Qin and Gu Yong oppose accepting Yi Yan Moyan because the chanyu is now a submitted frontier counterpart.
• Trap and trust concern: Hanji 510 says the request could be a test or counterintelligence move and could trade one person for a polity’s trust.
• Jibin value test: Hanji 517 says Jibin’s submission or refusal has little effect on Western Regions security and that its envoys appear to be merchants rather than political principals.
• Escort-risk compromise: Hanji 517 inventories robbery, hunger, provisioning failure, illness, and fatal terrain, then recommends escort only to Pishan.

Qualifications

This page is bounded to Hanji 504, Hanji 505, Hanji 510, and Hanji 517 and does not reconstruct Du Qin’s full biography, office sequence, complete memorial texts, or all recommendations to Wang Feng. Hanji 504’s “nine wives” proposal is source-scoped as an episode summary and is not treated here as proof that the policy was legally feasible in Han practice. Hanji 517’s supplied transcript writes 杜清; the wiki routes the adviser to Du Qin from the Chengdi-era Wang Feng context, while preserving the transcription uncertainty here.

What Changed

• Added Hanji 517’s Jibin advice, showing Du Qin distinguish high-value trust maintenance from low-value, high-risk prestige expenditure.
• Preserved the harem-regulation, omen-interpretation, and Xiongnu-defection layers from Hanji 504, 505, and 510.

Relationships

• 王凤 - powerholder whose access makes Du Qin’s advice politically relevant.
• 谷永 - paired interpreter and adviser in Hanji 505 and Hanji 510.
• 汉成帝 - ruler whose desire, childlessness, omen questions, and diplomacy create Du Qin’s advisory occasions.
• 一言莫衍 - Xiongnu envoy whose defection request Du Qin advises refusing.
• 后宫继承风险控制 - concept created from Du Qin’s Hanji 504 advice.
• 后宫灾异归咎转移 - concept Du Qin helps illustrate in Hanji 505.
• 天象灾异包装式进谏 - broader interpretive speech field for the episode.
• 边疆册封信用权衡 - related diplomatic-risk field for the Hanji 510 advice.
• 罽宾 - remote polity whose limited strategic value and dangerous route shape Du Qin’s escort recommendation.
• 外交成本风险核算 - two-sided decision frame linking the Xiongnu and Jibin cases.