abstract:Wuzhi (; died 685 BC), also called Gongsun Wuzhi (公孫無知, Gongsun meaning grandson of a duke), was for a few months in early 685 BC ruler of the State of Qi during the Spring and Autumn Period of ancient China. His personal name was Lü Wuzhi (呂無知), ancestral name Jiang ([ Unlike most rulers, he was not given a posthumous title] because he killed the monarch and usurped the throne.