Duke Huan of Qi

Ruler of Qi (r. 685 to 643 BCE)

Duke Huan of Qi (Chinese: 齊桓公; pinyin: Qí Huán Gōng), personal name Lü Xiaobai, was Duke of Qi from 685 to 643 BC. Duke Huan and his long-time advisor Guan Zhong managed to transform Qi into China's most powerful polity. Duke Huan is commonly listed among the Five Hegemons of the Spring and Autumn period. Toward the end of his more than 40-year-long reign, however, Duke Huan's power began to decline as he grew ill and the Qi state came to be embroiled in factional strife.

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