Duke Gong of Cao


Duke Gong of Cao was the seventeenth ruler of the vassal State of Cao during the Chinese Spring and Autumn period. Born Ji Xiang, he was the son of Duke Zhao of Cao.
In 637 BCE, during the exile of Chong’er, son of Duke Xian of Jin, Duke Gong heard that Chong’er suffered from fused ribs and wanted to see for himself. Chong’er caught Duke Gong spying on him whilst he bathed and described the Duke as a man of “unbelievable rudeness”.
After Chong’er became Duke Wen of Jin and one of the Five Hegemons, in 632 he used Duke Gòng's previous rudeness as an excuse to overthrow the State of Cao. Duke Gòng was captured by the State of Jin but later released.
After Duke Gong of Cao died in 618 BCE, his son Duke Wen of Cao became ruler.