河西 / Hexi (Warring States)

河西 / Hexi appears in the Zhouji Qin-Wei branch as contested western Wei territory that 秦国 keeps pulling away from 魏国. 《资治通鉴·周纪》23丨魏惠王 悔不用公叔之言 records Wei ceding Hexi after 公孙鞅 / 商鞅 defeats Wei and captures 公子卬 / 公子昂.

《资治通鉴·周纪》34丨秦国总理如何玩转六国 shows the pressure continuing in the later 330 BCE sequence. After Qin surrounds 焦邑 and 曲沃, Wei yields 少梁 and Hexi land, so Hexi should be read as a continuing frontier-loss branch rather than a single isolated transaction.

Connections

• 秦国 and 魏国 - states contesting and transferring the territory.
• 公孙鞅 / 商鞅, 公子卬 / 公子昂, and 战术信用成本 - Zhouji 23 cession context.
• 焦邑, 曲沃, and 少梁 - Zhouji 34 cession and pressure context.
• 秦国东进压力 - broader strategic pattern.
• 安邑 and 大梁 - capital-geography consequence of Wei’s earlier western vulnerability.