耿舒 / Geng Shu (Eastern Han)

Overview

耿舒 / Geng Shu is synthesized as an Eastern Han Geng-family commander whose current profile has two distinct military layers. Hanji 690 places him in the Peng Chong rebellion branch, where Geng Kuang sends him against Peng Chong’s Xiongnu-backed raiders and he kills two Xiongnu princes. Hanji 725 later identifies him as Geng Yan’s younger brother and makes him the route critic whose Wuling-campaign complaint reaches court.

Current Profile

Hanji 690 supplies the earlier Youzhou-family military layer. Peng Chong uses Xiongnu troops to raid, and Geng Kuang orders Geng Shu to attack. Geng Shu defeats the raiders and kills two Xiongnu princes, helping demonstrate that the Geng family is not drifting toward Peng Chong despite prior ties.

Hanji 725 gives Geng Shu a later but narrow Wuling profile. Before the Wuling advance, he argues for the Chongxian route because it is flatter and easier for the army to move through, even though transport would be longer and more costly. Ma Yuan instead favors Hutou, hoping to seize the enemy’s throat and make other resistance collapse.

After the Hutou route stalls under steep terrain, fast water, summer heat, disease, and enemy high-ground defense, Geng Shu writes to Geng Yan to complain that his route advice should have been followed. Geng Yan forwards the letter to court, and Liu Xiu sends Liang Song to question Ma Yuan and oversee the army. Geng Shu’s role is therefore both an early loyalty-through-action signal and a later decision-review trigger in Ma Yuan’s final campaign.

Key Characteristics

• Eastern Han Geng-family commander active in both Youzhou-rebellion and Wuling-campaign evidence layers.
• Son of Geng Kuang in the Peng Chong branch and younger brother of Geng Yan in the Wuling source identification.
• Commander who helps prove Geng-family alignment by defeating Peng Chong’s Xiongnu-backed raid.
• Advocate of the Chongxian route over Ma Yuan’s Hutou route.
• Critic whose complaint reaches court after the Hutou advance fails.
• Trigger figure for Liu Xiu’s dispatch of Liang Song to question Ma Yuan.

Evidence

• Peng Chong raid response: Hanji 690 says Geng Kuang orders Geng Shu to attack after Peng Chong uses Xiongnu troops for raiding.
• Xiongnu casualties: Hanji 690 says Geng Shu defeats the Xiongnu-backed force and kills two Xiongnu princes.
• Loyalty-signal context: Hanji 690 places Geng Shu’s action after Geng Yan worries about suspicion over Geng Kuang’s relationship with Peng Chong and after Geng Guo goes to court.
• Route alternative: Hanji 725 says Geng Shu recommends the flatter Chongxian route, while Ma Yuan prefers Hutou.
• Campaign failure context: Hanji 725 says the army becomes blocked at Hutou by water, terrain, heat, and disease.
• Court escalation: Hanji 725 says Geng Shu’s letter to Geng Yan is sent to court, after which Liu Xiu sends Liang Song to question Ma Yuan and act as monitor.

Qualifications

The current page does not decide whether Geng Shu’s Wuling plan was strategically superior. Hanji 725 records his complaint after the Hutou route fails, but it also preserves Ma Yuan’s reason for choosing Hutou: shorter distance and a hoped-for decisive pressure point. Hanji 690 gives a brief victory notice rather than a full Youzhou military biography. Geng Shu’s office title and wider career remain source-scoped.

What Changed

• Added Hanji 690 as the early Peng Chong and Xiongnu-backed raid layer.
• Reframed Geng Shu from a single Wuling route critic into a two-layer Geng-family commander.
• Preserved Hanji 725 as the Wuling campaign route-dispute and court-escalation role.

Relationships

• 耿况 - father who orders Geng Shu to attack Peng Chong’s Xiongnu-backed raiders.
• 彭宠 - rebel whose raiding force Geng Shu defeats in Hanji 690.
• 匈奴 - outside force whose troops support Peng Chong before Geng Shu’s counterattack.
• 耿国 - Geng-family court-service signal in the same Peng Chong suspicion context.
• 马援 - senior commander whose Hutou route choice Geng Shu disputes.
• 耿弇 - elder brother who transmits Geng Shu’s complaint to court.
• 梁松 - imperial envoy sent after the complaint reaches Liu Xiu.
• 光武帝刘秀 - ruler whose trust in the Geng family frames the early raid response and who later orders inquiry after the Wuling complaint.
• 武陵蛮 - campaign opponent whose terrain and defense make the route choice consequential.
• 建国将领消疑 - concept adjacent to Geng Shu’s early loyalty-through-action role.
• 便宜行事式招抚 - downstream settlement pattern after the Wuling campaign crisis and Ma Yuan’s death.