Tags: Noble.
Duke Gong of Cao (? – 618 BCE) (Chinese: 曹共公; pinyin: Cáo Gòng Gōng) was the seventeenth ruler of the vassal State of Cao during the Chinese Spring and Autumn Period (770 – 475 BCE). Born Ji Xiang (姬襄) 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.