Duke Cheng of Jin
Duke Cheng of Jin, personal name Ji Heitun, was from 606 to 600 BC the duke of the Jin state. He was the youngest son of Duke Wen, and succeeded his nephew Duke Ling, who was killed by Zhao Chuan. Zhao Dun and Zhao Chuan then installed Duke Cheng on the Jin throne.
During the seven years of Duke Cheng's reign, the Jin state attacked the states of Zheng, Chu, Qin, and Chen.
Duke Cheng died in 600 BC and was succeeded by his son, Duke Jing.