张成 / Zhang Cheng (late Han astrologer)

Overview

张成 / Zhang Cheng is a late-Han Henan yin figure whose current wiki profile is source-bounded to Hanji 874. He is presented as an expert in 占候 / astrological prediction whose anticipated amnesty and son’s murder become the immediate criminal trigger for 李膺’s enforcement action and the eunuch-backed first Party Prohibition accusation.

Current Profile

Hanji 874 makes Zhang Cheng important less as a full biographical subject than as a hinge between omen knowledge, legal manipulation, and court retaliation. He predicts that a general amnesty is imminent and lets his son commit murder under that expectation. Li Ying, serving in the capital enforcement field, treats the case as calculated abuse rather than ordinary pardon-covered crime and executes Zhang Cheng father and son despite the amnesty.

Zhang Cheng’s political danger comes from his access ties. The source says he has eunuch backing and had been consulted by 汉桓帝, so Li Ying’s execution creates a grievance that can travel through inner-court channels. Zhang Cheng’s disciple 劳修 then accuses Li Ying and other士人 of mutual praise, party formation, court slander, and disordering customs, turning one amnesty-gaming murder case into the first Party Prohibition arrest field.

Key Characteristics

• Henan yin-associated late-Han figure skilled in 占候 / astrological prediction.
• Actor who treats imminent amnesty as a shield for deliberate crime.
• Criminal trigger for Li Ying’s assertion that calculated abuse should not be protected by formal pardon.
• Eunuch-connected figure whose death can be converted into political retaliation.
• Upstream source of Lao Xiu’s accusation channel against Li Ying and other士人.

Evidence

• Astrological prediction: Hanji 874 says Zhang Cheng is skilled in 占候 and calculates that an amnesty will soon arrive.
• Amnesty-gaming murder: Hanji 874 says he tells his son to commit murder under the expected amnesty.
• Enforcement response: Hanji 874 says Li Ying arrests and executes Zhang Cheng father and son despite the general amnesty.
• Court-access risk: Hanji 874 says Zhang Cheng has eunuch connections and had been asked about matters by Emperor Huan.
• Retaliation channel: Hanji 874 says Zhang Cheng’s disciple Lao Xiu submits the accusation that leads to party arrests.

Qualifications

This page is limited to Hanji 874 and does not reconstruct Zhang Cheng’s full biography. It is also distinct from 张承 / Zhang Cheng (late Han), the later Zhang Fan-related figure; this route uses the semantic suffix “AstrologerLateHan” to avoid a public-route collision.

What Changed

• Hanji 874 creates this page as the wiki’s source-bounded Zhang Cheng for the amnesty-gaming murder case.
• The current profile connects Zhang Cheng to astrological prediction, legal abuse, eunuch access, and the first Party Prohibition accusation trigger.

Relationships

• 李膺 - enforcement official who executes Zhang Cheng father and son despite the amnesty.
• 劳修 - disciple whose accusation turns Zhang Cheng’s death into a party-prohibition trigger.
• 大赦预期犯罪 - concept grounded in Zhang Cheng’s use of imminent amnesty as a crime shield.
• 中国星占政治 - broader omen-knowledge field that gives Zhang Cheng’s prediction political and legal stakes.
• 汉桓帝 - ruler connected to Zhang Cheng through prior consultation and later party arrests.
• 朋党网络谋反化 - accusation pattern that follows from the retaliation over Zhang Cheng’s execution.