国渊 / Guo Yuan (late-Han investigator)

Overview

国渊 / Guo Yuan is a late-Han official represented through agricultural administration, restrained reporting of domestic revolt, an anonymous-letter investigation, promotion under 曹操, and a source-scoped portrait of austere personal conduct. The semantic suffix in this page key distinguishes him from 郭援 / 郭元.

Current Profile

Hanji 1127 supplies the administrative prequel. It credits Guo Yuan with productive屯田 work, says he supports clemency for surrenderers after the Hejian revolt, and emphasizes that he reports the domestic victory without the customary multiplication of killed and captured. His distinction is reputational as well as factual: inflated figures may deter an external enemy, but boasting about subjects in rebellion advertises a failure of internal order. The episode then introduces his inference that an anonymous accusation quoting 张衡’s Er Jing Fu came from someone familiar with the text.

Hanji 1128 completes that investigation. Guo Yuan sends three people to find someone capable of explaining the text; they pose as students and ask the target to write a letter. He then compares that sample with the accusation, identifies a suspect, and orders arrest and interrogation.

The episode says Cao Cao promotes him to taipu after the case. It also portrays him as wearing plain cloth, eating simple food, distributing salary and rewards to relatives and old associates, and dying in office. These biographical details add a frugality-and-service profile but remain bounded to this popular-history source.

Key Characteristics

• Investigator who begins with what the document reveals about its author’s knowledge.
• Uses a pretext to obtain a comparison sample before coercive action.
• Treats handwriting resemblance as corroboration within a narrowed candidate field.
• Administrator who distinguishes external victory signaling from honest reporting of domestic disorder.
• Source-scoped agricultural official associated with increased stores and clemency toward controlled surrenderers.
• Cao-side official rewarded with promotion after solving the case.

Evidence

• Content-based narrowing: Hanji 1128 says Guo Yuan uses the letter’s literary content to search among people able to explain Er Jing Fu.
• Comparison-sample operation: Hanji 1128 says agents pose as students, request writing, and return the sample for comparison.
• Domestic-reporting restraint: Hanji 1127 says Guo Yuan refuses to inflate a victory over subjects and explains why domestic revolt should not become a boast.
• Production and clemency: Hanji 1127 credits his agricultural administration and places him on the side of sparing controlled surrenderers.
• Appointment and conduct: Hanji 1128 reports Cao Cao’s promotion and the later portrait of frugal living, generosity, and death in office.

Qualifications

The source summaries do not supply the anonymous letter’s full text, the number of plausible candidates, comparison criteria, independent corroboration, false-positive controls, or interrogation record. The case should not be projected backward as validated modern forensic handwriting analysis. Harvest claims, reporting custom, captive totals, office chronology, and the virtue portrait also require direct historical-text corroboration.

What Changed

• Added Hanji 1127’s agricultural, clemency, and domestic-reporting prequel.
• Reframed the investigation as one part of a broader administrative judgment profile.

Relationships

• 曹操 - ruler who promotes Guo Yuan after the investigation.
• 曹丕 - acting authority in the Hejian surrender debate Guo Yuan helps resolve.
• 魏郡 - commandery Guo Yuan is said to govern after his reporting judgment.
• 张衡 - author whose Er Jing Fu supplies the literacy clue.
• 内容—笔迹归因 - investigation pattern grounded by Guo Yuan’s case.
• 郭援 / 郭元 - different person sharing the normalized Guo Yuan key.