Cao Cao
Cao Cao (– 15 March 220), courtesy name Mengde, was a warlord and the penultimate Chancellor of the Eastern Han dynasty who rose to great power in the final years of the dynasty.
As one of the central figures of the Three Kingdoms period, he laid the foundations for what was to become the state of Cao Wei and ultimately the Jin dynasty, and was posthumously honoured as "Emperor Wu of Wei".
He is often portrayed as a cruel and merciless tyrant in subsequent literature; however, he has also been praised as a brilliant ruler and military genius who treated his subordinates like his family.
During the fall of the Eastern Han dynasty, Cao Cao was able to secure the most populated and prosperous cities of the central plains and northern China.
Cao Cao had much success as the Han chancellor, but his handling of the Han Emperor Xian was heavily criticised and resulted in a continued and then escalated civil war.
Opposition directly gathered around warlords Liu Bei and Sun Quan, whom Cao Cao was unable to quell.
Cao Cao was also skilled in poetry, calligraphy and martial arts and wrote many war journals.
Etan Boritzer
Etan Boritzer( born 1950) is an American writer of children ’s literature who is best known for his book" What is God?" first published in 1989.
His best selling" What is?" illustrated children's book series on character education and difficult subjects for children is a popular teaching guide for parents, teachers and child- life professionals.
Boritzer gained national critical acclaim after" What is God?" was published in 1989 although the book has caused controversy from religious fundamentalists for its universalist views.
The other current books in the" What is?" series include
What is Love?,
What is Death?,
What is Beautiful?,
What is Funny?,
What is Right?,
What is Peace?,
What is Money?,
What is Dreaming?,
What is a Friend?,
What is True?,
What is a Family?,
What is a Feeling?"
The series is now also translated into 15 languages.
Boritzer was first published in 1963 at the age of 13 when he wrote an essay in his English class at Wade Junior High School in the Bronx, New York on the assassination of John F. Kennedy.
His essay was included in a special anthology by New York City public school children compiled and published by the New York City Department of Education.
Boritzer now lives in Venice, California and maintains his publishing office there also.
He has helped numerous other authors to get published through" How to Get Your Book Published!" programs.
Boritzer is also a yoga teacher who teaches regular classes locally and guest- teaches nationally.
He is also recognized nationally as an erudite speaker on" The Teachings of the Buddha."
Cao Lin (Prince of Donghai)
Cao Lin( died 5 February 251) was an imperial prince of the state of Cao Wei in the Three Kingdoms period of China.
He was a son of Cao Pi, the first Wei emperor, and the biological father of Cao Mao, the fourth Wei emperor.
Cao Yu
Cao Yu (September 24, 1910—December 13, 1996) was a Chinese playwright, often regarded as China's most important of the 20th century.
His best-known works are "Thunderstorm" (1933), "Sunrise" (1936) and "Peking Man" (1940).
It is largely through the efforts of Cao Yu that the modern Chinese "spoken theater" took root in 20th-century Chinese literature.
Cao Yu is regarded as the paramount playwright of modern Chinese drama, "enthroned as China's Shakespeare" according to "The Columbia Anthology of Modern Chinese Drama".
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
Duke Dao of Cao
Duke Dao of Cao( 6th century BCE) was the twenty- second ruler of the vassal State of Cao during the Chinese Spring and Autumn period( 770 – 475 BCE).
Born as Jī Wŭ( 姬午), he was the son of Duke Ping of Cao from whom he inherited the throne.
Duke Jing of Song captured Dào in 515 BCE and held him prisoner until his death.
Thereafter, disorder broke out in the State of Cáo as Dào ’s successors, Duke Sheng of Cao and Duke Yin of Cao, were killed one after the other.
Duke Gong of Cao
Duke Gong of Cao (? – 618 BCE)  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.
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.
Cao Yu (Three Kingdoms)
Cao Yu (211–265), courtesy name Pengzu, was a prince of the state of Cao Wei during the Three Kingdoms period of China.
He was a son of Cao Cao, a warlord who rose to power towards the end of the Han dynasty and laid the foundation of Wei.
Cao Yu's son, Cao Huan, was the fifth and last emperor of Wei.
Count You of Cao
Count You of Cao( ?–826 BCE) was the seventh ruler of the vassal State of Cao during the Chinese Western Zhou Dynasty( 1046 – 770 BCE).
Born Jī Jiāng( 姬疆), he was the son of Count Xiao of Cao( 曹孝伯) and the younger brother of Count Yi of Cao( 曹夷伯).
Count You was killed by his younger brother Count Dai of Cao( 曹戴伯) in 826 BCE after a nine- year reign.
Duke Mu of Cao
Duke Mu of Cao( 8th Century BCE) was the eleventh ruler of the vassal State of Cao during the Chinese Eastern Zhou Dynasty( 770 – 256 BCE) and Spring and Autumn period.
Born Jī Wǔ( 姬武), he was the son of Cáo Huìbó( 曹惠伯).
In 760 BCE, Duke Mu of Cao killed his elder brother Cáo Fèibó( 曹廢伯/ 曹废伯) and appointed himself ruler of the State of Cao.
He was the first ruler of the State of Cao to receive the posthumous title of" Duke"( 公).

Question: When did Cao Yu (Three Kingdoms)'s father die?
Answer: 15 March 220