田晏 / Tian Yan (late Han)

Overview

Tian Yan is a late-Han military figure whose current wiki evidence places him first as Duan Jiong’s subordinate in a 169 CE Qiang campaign and later as a court-sponsored commander in the failed 177 CE Xianbei expedition.

Current Profile

Tian Yan’s profile now has a contrast across two frontier settings. In Hanji 891, he appears as a cavalry officer under 段熲, helping execute a surprise and night-movement plan against the 东羌. In Hanji 909, he seeks command through 王甫’s palace access and becomes part of a disastrous deep expedition against 鲜卑 despite 蔡邕’s warning.

The combined evidence makes Tian Yan a useful route for the wiki’s frontier-command synthesis: the same name appears inside a successful bounded campaign and a later overextended campaign. His biography should therefore be read through command context, sponsorship, and state capacity rather than battlefield courage alone.

Key Characteristics

• Cavalry officer attached to Duan Jiong’s 169 CE anti-Qiang operation.
• Participant in silent night movement and western-mountain positioning before the Shehu Valley attack.
• Later command-seeker whose 177 CE Xianbei expedition role is mediated by Wang Fu’s palace access.
• Example of how frontier command outcomes depend on larger capacity and appointment channels.

Evidence

• Qiang-campaign role: Hanji 891 says Duan Jiong sends cavalry commander Tian Yan with Xia Yu and five thousand elite riders to surprise the Qiang camp.
• Night movement: Hanji 891 later has Tian Yan and Xia Yu lead seven thousand picked troops each, using “衔枚” silent discipline to reach the western mountain.
• 177 appointment channel: Hanji 909 says Tian Yan asks Wang Fu to recommend him, and Wang Fu’s support helps him gain command against Xianbei.
• Failed expedition: Hanji 909 says Tian Yan leads the Yunzhong column deep into Xianbei territory, is defeated by Tanshihuai, escapes with only a few dozen riders, and later redeems punishment through money and connections.

Qualifications

This page treats the 169 田晏 and the 177 田晏 as the same canonical late-Han route because the current wiki evidence offers no reason to split them. If later sources distinguish separate officeholders, the page should be disambiguated.

What Changed

• Migrated the page to synthesis-v1.
• Added Hanji 891’s earlier Qiang-campaign role before the existing Hanji 909 Xianbei-expedition evidence.

Relationships

• 段熲 - commander under whom Tian Yan serves in the 169 Qiang campaign.
• 夏育 - paired cavalry officer in both the Qiang campaign and later Xianbei frontier synthesis.
• 东羌 - opponent in Tian Yan’s earlier campaign evidence.
• 王甫 - eunuch sponsor for Tian Yan’s later Xianbei command.
• 蔡邕 - remonstrator whose warning qualifies the later expedition.
• 鲜卑 - opponent in the later failed deep expedition.
• 边境远征过度 - strategic pattern attached to the 177 failure.
• 战场信息控制 - tactical frame for the 169 silent-movement role.