《资治通鉴·汉纪》400-1｜太毒辣？汉昭帝竟逼迫哥哥燕王刘旦自杀！

Summary

This 芮淇讲透资治通鉴 episode backfills the anti-霍光 conspiracy before Hanji 401 and Hanji 402-1. It follows 上官桀, 上官安, 盖长公主, 桑弘羊, and 燕王刘旦 as they plan to kill Huo Guang, depose 汉昭帝刘弗陵, and use royal succession language to legitimate the revolt.

The durable synthesis is that the plot collapses because coalition interest is thinner than shared risk. Liu Dan imagines the plan as his imperial opportunity, while Shangguan An secretly intends to kill Liu Dan and install Shangguan Jie; the conspiracy then leaks through Yan Cang, Yang Chang, and 杜延年 to Han Zhao. The episode frames the result as a warning about power desire: the main conspirators are killed or die by suicide, Liu Dan’s heir is spared, 上官皇后 / 上官太后 survives because she is treated as too young and uninvolved, and informants or loyal remonstrators receive rewards.

Key Claims

• Shangguan Jie, Shangguan An, Gai Chang Gongzhu, Sang Hongyang, and others move from anti-Huo hostility into a concrete palace plot to kill Huo Guang at a banquet and depose Han Zhao.
• Liu Dan responds eagerly because he reads his senior royal status and earlier public unrest in Chang’an as signs that he can be accepted as emperor.
• The coalition is internally predatory: Shangguan An intends to kill Liu Dan after using him and then install his father Shangguan Jie instead.
• The plot fails through leakage and official reporting: Yan Cang hears the plan, tells Yang Chang, and Du Yannian finally reports it to Han Zhao.
• Han Zhao’s response is swift and differentiated: the principal conspirators and their kin are destroyed, Gai Chang Gongzhu and Liu Dan die by suicide, but Liu Dan’s son Liu Jian is reduced to commoner status rather than executed.
• The episode turns the aftermath into a reward-and-punishment tableau, with Du Yannian, Yan Cang, Ren Gong, Wang Shanshou, and Han Yanshou rewarded for reporting, arresting, or preserving loyal remonstrance.

Key Quotes

“上天欲其灭亡，必先令其疯狂” - the episode’s opening frame for the conspirators’ final escalation.

“猎狗逐鹿，不顾兔” - Shangguan An’s metaphor, as presented by the episode, for disregarding his own daughter’s position once the coup begins.

Connections

• 燕王刘旦 - royal claimant whose ambition becomes the plot’s public succession vehicle and whose suicide ends the rebellion branch.
• 上官桀 and 上官安 - father-son conspirators whose anti-Huo plan turns into a bid for their own imperial replacement.
• 盖长公主 - palace-access sponsor whose banquet setting is imagined as the assassination venue.
• 霍光 - regent targeted for assassination before the conspirators can depose Han Zhao.
• 汉昭帝刘弗陵 - ruler whose rapid edict transforms the leaked plot into executions and forced royal suicide.
• 桑弘羊 - named conspirator whose later destruction is developed further in Hanji 402-1.
• 杜延年 - official who reports the conspiracy after Yang Chang hesitates.
• 宫廷政变中的符印与门户控制 - the planned banquet assassination shows a failed Western Han variant where palace access is imagined but never operationalized.

Contradictions

• No settled contradiction with existing wiki content was found.
• Scope caution: Yan Cang, Yang Chang, Ren Gong, Wang Shanshou, Liu Jian, Han Yi, Han Yanshou, and exact reward-title details remain source-scoped unless later notes require standalone pages.