三川 / Sanchuan (Warring States)
三川 / Sanchuan appears in 《资治通鉴·周纪》55丨 张仪痛失贵人秦惠王 as part of 张仪’s proposed opportunity for 秦国 after 秦惠文王 dies. Zhang Yi tells 秦武王 that if he is sent to 魏国, 齐国 will attack Wei because it hates him, giving Qin an opening to attack 韩国 and advance into Sanchuan.
The source does not pause to define Sanchuan geographically, so this page should remain source-scoped. Its wiki function is to mark the royal-domain pressure implied in Zhang Yi’s pitch: entering Sanchuan sits beside the stronger claim that Qin could pressure the 周王室 and seize the maps and registers associated with political authority.
《资治通鉴·周纪》58丨赵武灵王如何打造强国 adds Sanchuan as the route context after 甘茂 takes 宜阳. The episode uses 《史记》 to explain why 秦武王 is at 洛邑: once Sanchuan is open, Qin Wuwang can visit the Zhou king and the Nine Dings. This turns Sanchuan from a proposed future pressure zone into a practical corridor in the Qin Wuwang death story.
《资治通鉴·秦纪》102-1｜吕不韦是姜子牙后人？ turns Sanchuan from route context into Qin administration. In 秦庄襄王’s first year, 蒙敖 attacks 韩国, takes Chenggao, and Qin establishes Sanchuan commandery. The source says the commandery name comes from three rivers and clearly names Yi and Luo, while the third name is uncertain in the transcript.
《资治通鉴·秦纪》103-1｜司马迁看中的信陵君算是小人吗？ uses Sanchuan as the administrative frame behind Qin’s control of 荥阳. That control matters because 荥泽 and the Guancheng area become a remaining threat to 大梁 after 信陵君 defeats Meng Ao.
Qinji 129-1 returns to Sanchuan at the moment Qin faces anti-Qin rebellion rather than Warring States rivals. 李由 is the Sanchuan governor defending 荥阳 against 吴广, and the city’s successful defense helps create the Zhang Chu command crisis that ends in Wu Guang’s death.
Hanji 149 part 2 gives Sanchuan a Chu-Han afterlife through 申阳. The source says Shen Yang had taken Sanchuan and been made Henan king by Xiang Yu; when he surrenders to Liu Bang, Liu Bang turns the territory into 河南郡.
Connections
- 张仪, 秦武王, and 秦国 - strategist, listener, and state in the proposed plan.
- 魏国, 齐国, and 韩国 - states whose conflict or exposure creates the opening.
- 周王室 - authority center named in the same proposed move.
- 甘茂, 宜阳, 洛邑, and 《史记》 - Zhouji 58 route and death-scene explanation.
- 以自保包装国策, 连横, and 纵横家外交 - concepts that explain why the region matters inside Zhang Yi’s argument.
- 蒙敖, 秦庄襄王, 韩国, and Qinji 102-1 - Chenggao capture and commandery creation.
- 荥阳, 荥泽, 管城, 大梁, and Qinji 103-1 - Qin-held regional pressure after Xinlingjun’s coalition victory.
- 李由, 吴广, 田臧, and Qinji 129-1 - commandery office and Yingyang siege during Qin’s collapse.
- Hanji 149 part 2, 申阳, 河南郡, and 灭国后的郡县化过渡 - Chu-Han surrender and commandery conversion.