Cao Guojiu, literally Imperial Brother-in-law Cao, is a Chinese mythological figure and one of the

Eight Immortals The Eight Immortals () are a group of legendary ''xian'' ("immortals") in Chinese mythology. Each immortal's power can be transferred to a vessel () that can bestow life or destroy evil. Together, these eight vessels are called the "Covert Eight ...

in the

Taoist Taoism (, ) or Daoism () refers to either a school of philosophical thought (道家; ''daojia'') or to a religion (道教; ''daojiao''), both of which share ideas and concepts of Chinese origin and emphasize living in harmony with the ''Tao'' ...

pantheon. His real name was Cao Yi while his

courtesy name A courtesy name (), also known as a style name, is a name bestowed upon one at adulthood in addition to one's given name. This practice is a tradition in the East Asian cultural sphere, including China, Japan, Korea, and Vietnam.Ulrich Theobald ...

was Jingxiu, and he was better known to his contemporaries as Cao Jingxiu. Cao Guojiu is believed to be a descendant of

Cao Bin Cao Bin () (931 - 999) was a military general in history of China, imperial China. A nephew-in-law of Guo Wei, who founded the Later Zhou in 951, Cao first rose up through the ranks of the Later Zhou military. After the Song Dynasty replaced Lat ...

, a general of the early

Song dynasty The Song dynasty (; ; 960–1279) was an imperial dynasty of China that began in 960 and lasted until 1279. The dynasty was founded by Emperor Taizu of Song following his usurpation of the throne of the Later Zhou. The Song conquered the rest ...

, and a younger brother of

Empress Cao An emperor (from la, imperator, via fro, empereor) is a monarch, and usually the sovereignty, sovereign ruler of an empire or another type of imperial realm. Empress, the female equivalent, may indicate an emperor's wife (empress consort), ...

, the wife of Emperor Renzong of the Song dynasty. As none of Emperor Renzong's sons survived their father, the emperor designated a younger male relative, who later became Emperor Yingzong, as his successor. As such, Cao could not have been a maternal uncle of Emperor Yingzong, so his "Imperial Uncle" status seemed ambiguous. However, as the Chinese character ''jiu'' (), which means "maternal uncle", can also mean "wife's brother", it is believed that the latter meaning should apply to Cao. In other words, Cao was the "Imperial Brother-in-Law" of Emperor Renzong rather than an "Imperial (Maternal) Uncle" of any Song dynasty emperor. Cao's younger brother, Cao Jingzhi (), abused his relationship with the imperial family by bullying others and engaging in corrupt practices. Cao tried to persuade his brother to change his ways but he did not listen. In the meantime, he also used his family fortune to help the poor and tried to make up for his brother's misdeeds. One day, Cao Jingzhi was accused by other officials in the imperial court of corruption and abuse of power. Cao felt so ashamed and disappointed by his brother's misconduct that he gave up his official career and went to the countryside to lead a reclusive life. During this time, he met the immortals

Zhongli Quan Zhongli Quan, courtesy name Jidao, is a Chinese mythological figure and one of the Eight Immortals in the Taoist pantheon. He is also known as Han Zhongli because he was said to have been born in the Han dynasty. In legend, he wields a large fa ...

and

Lü Dongbin Lü Dongbin (796 CE – 1016 CE) is a legendary Chinese scholar and poet said to have lived during the Tang Dynasty. Whether he actually lived the two hundred and twenty years cannot be determined. Elevated to the status of an immortal in the C ...

, who taught him Taoist magical arts. After many years of practice and cultivation, Cao himself also became an immortal. Cao is often depicted dressed in official robes and holding a jade tablet or ''

paiban The ''paiban'' () is a clapper made from several flat pieces of hardwood or bamboo (or, formerly, sometimes also ivory or metal), which is used in many different forms of Chinese music. There are many different types of ''paiban'', and the instr ...

'' (clapper). He is also regarded as the patron deity of acting and theatre.

Modern references

In the television show ''

Jackie Chan Adventures ''Jackie Chan Adventures'' is an American animated television series, created by John Rogers, Duane Capizzi and Jeff Kline, and produced by Sony Pictures Television (originally as Columbia TriStar Television for the first three seasons). The car ...

'', Cao was shown to be the Immortal who sealed away Tchang Zu, The Thunder Demon. He was depicted as missing his lower right leg, seemingly mistaken for

Li Tieguai Li Tieguai (Standard Chinese, Mandarin: ; lit. "Iron Crutch Li") is a Chinese mythology, Chinese mythological figure and one of the Eight Immortals in the Taoism, Taoist pantheon. He is sometimes described as irascible and ill-tempered, but also b ...

, and was instead later revealed as the Immortal who first sealed away Bai Tza, The Water Demon by way of the gourd that Uncle used to later seal her away permanently. {{Eight Immortals Health gods Eight Immortals Arts gods