Duke Ding of Jin

Duke Ding of Jin , personal name Ji Wu, was from 511 BC to 475 BC the duke of the Jin state. He succeeded his father, Duke Qing, and was in turn succeeded by his son, Duke Chu.

War of the clans After the extermination of the Luan clan by Duke Ding's great-grandfather Duke Ping, the state of Jin had been dominated by the six powerful clans – Fan, Han, Zhao, Wei, Zhonghang, and Zhi. In 497 BC a dispute broke out between Zhao Yang (趙鞅), the leader of the Zhao clan, and the Fan and Zhonghang clans. The Fan and Zhonghang forces attacked Zhao, and the three other clans – Han, Wei, and Zhi – came to Zhao's defence and attacked Fan and Zhonghang, who were defeated and forced to retreat to the city of Zhaoge. Seven years later, in 490 BC the combined Jin forces decisively defeated the Fan and Zhonghang clans, whose leaders Fan Jishe and Zhonghang Yin fled to the State of Qi. From then on Jin would be dominated by the remaining four clans, three of which would partition Jin into the new states of Han, Zhao, and Wei during the reign of Duke Ding's son Duke Chu of Jin.

Death and succession Duke Ding reigned for 37 years and died in 475 BC. He was succeeded by his son, Duke Chu of Jin.