陕城 / Shancheng (Warring States)
陕城 / Shancheng appears in 《资治通鉴·周纪》37丨苏秦：六国集团CEO的不堪情史 as the 魏国 place taken by 秦国 during 张仪’s 324 BCE attack. The episode locates it around present-day Shanzhou District, Sanmenxia, Henan.
The source says Shancheng had been returned to Wei in 327 BCE, then was taken again by Qin in 324 BCE. It therefore belongs to the same frontier-pressure pattern as 焦邑, 曲沃, 蒲阳, and 上郡: territory can be seized, returned, or bargained over while Qin keeps shaping Wei’s room for action.
The episode’s distinctive detail is that Qin takes the city but sends the people back to Wei. That makes Shancheng a case where 秦国东进压力 is not described as slaughter but as selective territorial control.