魏成侯 / Marquis Cheng of Wei
魏成侯 / Marquis Cheng of Wei appears in 《资治通鉴·周纪》29丨苏秦励志爽文：知识改变命运 through a compact succession notice: he dies, and 魏平侯 succeeds.
The page is source-scoped. The episode does not develop his career; it uses the notice as one of several quick dynastic handoffs before focusing on 苏秦 and the chronicle’s doubtful hezong placement.