Favorite-Driven Heir Displacement / 宠幸驱动的废嫡立庶

Definition

Favorite-driven heir displacement / 宠幸驱动的废嫡立庶 is the attempted or completed replacement of an established crown prince with the child of a ruler’s favored partner. It is narrower than Affection-Driven Succession Risk / 宠爱驱动的立储风险 because the consequential step is pressure against an already designated heir.

Current Synthesis

The bounded cases show three distinct outcomes. 赵悼襄王 completes the replacement of 赵嘉 with 赵迁, leaving the displaced branch able to reappear in 代地 after Zhao’s defeat. 刘邦 repeatedly considers replacing 刘盈 with 戚姬’s son 刘如意, but ministerial resistance and Liu Ying’s visible support prevent formal displacement while leaving the favored branch exposed.

The Hengshan sequence supplies a destructive non-settlement. 徐来 recruits 刘孝 and 刘无采 against 刘爽 while preferring her own son Liu Guang. Hanji 305-2 makes the incompatibility operational: Xu Lai compromises Liu Xiao, 刘赐 petitions to promote him, and reciprocal denunciations expose an alleged conspiracy. No alternative heir becomes secure; the ruling principals die and the kingdom is abolished.

Key Claims

• A ruler’s or queen’s favored branch can turn private preference into pressure against a publicly designated heir.
• Completed displacement can leave a rival lineage able to mobilize later, as Zhao Jia’s Dai remnant shows.
• Ministerial resistance and visible heir support can block replacement even when the ruler repeatedly prefers another son.
• Failed replacement can endanger both the favored alternative branch and the established heir when neither gains durable institutional protection.
• A later queen can recruit sibling resentment and ambition against an heir without accepting an ally’s preferred successor.
• Shared opposition can collapse into reciprocal exposure, producing no succession settlement and inviting intervention by superior authority.

Evidence

Completed replacement and political afterlife:

• Qinji 111-1 reports Zhao Jia’s removal in favor of Zhao Qian, whose mother the ruler favored.
• Qinji 114-1 describes Zhao Jia gathering kin and officials in Dai after Zhao Qian’s capture; the captive-ruler constraint on his title remains the host’s interpretation.

Resisted replacement and exposed alternative branch:

• Hanji 181 recounts Zhou Chang’s refusal and argues that his later Zhao appointment gives Liu Ruyi only thin protection.
• Hanji 189 records Zhang Liang’s noncooperation, Shusun Tong’s remonstrance, and the Shangshan elders’ visible support for Liu Ying.

Coalition formation and destructive non-settlement:

• Hanji 305-1 says Xu Lai wants Liu Guang to replace Liu Shuang and recruits Liu Xiao and Liu Wucai into repeated denunciation despite their divergent aims.
• Hanji 305-2 says Xu Lai compromises Liu Xiao, Liu Ci seeks to promote him, and the resulting denunciations end in investigation, deaths, and abolition rather than stable replacement.

Counterevidence & Qualifications

Only the Zhao case records completed formal replacement in these bounded inputs. Liu Bang’s attempt is blocked, while the Hengshan case destroys every principal succession branch before a durable alternative is installed. Zhao’s fall also involves war, command decisions, and Qin pressure, so the Qinji title’s blame of one woman is stigmatizing single-cause rhetoric rather than this page’s conclusion. The Hengshan notes are consecutive parts of one popular retelling, not independent corroboration; their sexual allegations, exact motives, conspiracy details, punishment sequence, and claim that the kingdom became 衡山郡 remain source-scoped. Six notes from one interpretive podcast series do not provide a general causal estimate.

What Changed

• Reclassified Hengshan from an unresolved coalition-formation stage to a destructive non-settlement.
• Added reciprocal exposure as a possible outcome when anti-heir allies disagree over the replacement.
• Clarified that failed displacement can destroy the established heir, rival candidates, and the governing house together.

Related Concepts

• Affection-Driven Succession Risk / 宠爱驱动的立储风险 - broader category of affection influencing heir selection before or after designation.
• Alternative-Heir Protection Failure / 备位继承人保护失灵 - vulnerability left when an alternative branch is exposed but not durably protected.
• 既定太子改立风险 / Established Heir Replacement Risk - institutional cost of reopening a long-recognized crown-prince settlement.
• Common-Enemy Alliance / 共同敌人联盟 - explains why shared opposition to one heir does not produce agreement on succession.
• Succession Non-Designation Risk / 未定继承人风险 - concerns an unsettled heir field rather than replacement of an established heir.
• 同姓王分封 / Same-Surname King Enfeoffment - wider vassal-kingdom structure within which the Hengshan succession crisis occurs.