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 now backfills the earlier harem-regulation layer: Du Qin proposes that Wang Feng use ancient ritual precedent to limit Chengdi’s harem before desire and childlessness turn into succession disorder.

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.

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.

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.

Qualifications

This page is bounded to Hanji 504, Hanji 505, and Hanji 510 and does not reconstruct Du Qin’s full biography, office sequence, complete memorial text, 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.

What Changed

• Added Hanji 504’s harem-regulation advice, making Du Qin’s succession-risk logic visible before the later omen and diplomacy cases.
• Preserved Hanji 505’s harem-omen interpretation and Hanji 510’s Xiongnu-defection refusal advice as separate advisory contexts.

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.