Royal Uncle Cao

The newest of the Eight Immortals, Royal Uncle Cao or Cao Guojiu (曹國舅 in pinyin: cáo guó jiù) or Wade-Giles, Ts'ao Kuo-ch'iu, is named one of the following: He was said to be the uncle of the Emperor of the Song Empire, being the younger brother of Empress Dowager Cao (曹太后 cáo tàihòu).
 * Cao Yi (曹佾 cáo yì) (courtesy name Gongbo (公伯 gōng bó))
 * Cao Jing (曹景 cáo jǐng)
 * Cao Jingxiu (曹景休 cáo jǐng xiū)
 * Cao You (曹友 cáo yǒu).

In historic records, there were several Emperor-consorts Caos in the Song Empire, but only one became empress: Cishengguangxian Empress (慈聖光獻皇后 cí shèng guāng xiàn huáng hoù) (1015 - 1079), the wife of the fourth Song emperor, Rénzōng (仁宗), none of whose children became an emperor.

However, this therefore does not render the historical existence of the "Royal Uncle Cao" impossible as in pre-modern China, the address "uncle" also meant "brother-in-law". Sometimes specified as "Wife-uncle" (妻舅 qī jiù) or as a respect, "Little Uncle" (舅子 jiù zǐ). Císhèngguāngxiàn Empress did have a younger brother named Cao Yi in historical record. But the given name of Royal Uncle Cao being Yi as well could be a post hoc.

Cao Guojiu's younger brother Cao Jingzhi (曹景植 cáo jǐng zhí) was a bully, but no one dared to prosecute him because of his powerful connections, not even after he killed a person. Royal Uncle Cao was so overwhelmed by sadness and shame on his brother that he resigned his office and left home.

Depiction
He is shown in the official's court dress with a jade tablet. Sometimes he holds castanets.

His jade tablet can purify the environment.

Цао Гуодзю Cao Guojiu Cao Guojiu Cao Guojiu Цао Гоцзю 曹國舅