汉中 / Hanzhong

汉中 / Hanzhong enters the wiki through 《资治通鉴·周纪》51丨 楚怀王：秦小儿看舅舅如何灭了你！ as the major territorial loss after 丹阳之战. The source says 秦国 takes Hanzhong from 楚国 after defeating Chu and capturing 屈匄.

The episode’s interpretive point is that Hanzhong should have become 楚怀王’s practical recovery objective. Instead, he remains fixated on the six hundred li of 商於 that 张仪 had only promised verbally. Hanzhong therefore anchors the gap between real, newly lost territory and imagined compensation.

《资治通鉴·周纪》53丨秦惠王用张仪换地皮 uses Hanzhong as evidence of Zhang Yi’s value to 秦国. The host says Zhang Yi had recently helped Qin take six hundred li of Hanzhong, which makes his exposure in Chu especially bitter: a minister who just produced major territory can still become a 可交换功臣 in a later bargain.

Connections

• 丹阳之战 - battle after which Qin takes the region.
• 秦国, 楚国, and 楚怀王 - capturing state, losing state, and ruler.
• 商於 and 未验地先断交陷阱 - promised land that distracts from the concrete loss.
• 因怒兴师 - decision frame in which recovery priorities collapse.
• 可交换功臣 - Zhouji 53 interpretation of why Zhang Yi’s prior territorial service does not guarantee personal protection.