卫成公 / 卫成侯 / Duke-Marquis Cheng of Wey
卫成公 / Duke Cheng of Wey appears in 《资治通鉴·周纪》10丨 以家族单位 有蚂蚁吃大象的精神（1） as Wei Xun, successor to 卫声公 after the latter dies in 373 BCE.
The page’s main function is disambiguation and chronology. It belongs to 卫国, not 魏国, and keeps the episode’s compact succession notice linkable.
《资治通鉴·周纪》11丨 世界风起云涌（2） revisits the figure through the title 卫成侯. The episode says 《史记》 has the ruler demote from duke to marquis in his sixteenth year, and it reads the move as a small-state attempt to show stronger neighbors that Wey is not claiming equal rank. Because the existing wiki page already has the duke-title form, this page keeps both title stages while flagging the 373/362 chronology issue.