子阳 / Ziyang of Zheng

子阳 / Ziyang of Zheng appears in 《资治通鉴·周纪》07丨两起刺杀（1） as the 郑国 prime minister killed by the Zheng ruler. The episode treats his death as one of the political killings behind the title’s assassination theme.

The source says Ziyang’s faction later kills the Zheng ruler and installs 郑康公. That sequence makes Ziyang a focal point for Spring-Autumn to Warring States Political Violence / 春秋战国政治暴力转型: court factions no longer merely exile or sideline rivals, but answer one killing with another.

Connections

• 郑国 - polity where Ziyang serves.
• 郑康公 - ruler installed by Ziyang’s faction later in the sequence.
• Spring-Autumn to Warring States Political Violence / 春秋战国政治暴力转型 - political-violence transition frame.
• Small-State Buffer Diplomacy / 小国夹缝外交 - broader geopolitical pressure around Zheng.