Liu Bei (Mandarin pronunciation: [ljoʊ peɪ]; 161 – 10 June 223), also known as Liu Xuande, was a warlord, military general and later the founding emperor of the state of Shu Han during the Three Kingdoms era of Chinese history. Despite having a later start than his rivals and lacking both the material resources and social status they commanded, Liu Bei overcame his many defeats to carve out his own realm, which at its peak spanned modern day Sichuan, Guizhou, Hunan, part of Hubei and part of Gansu.

Culturally, due to the popularity of the novel Romance of the Three Kingdoms by Luo Guanzhong, Liu Bei is widely known as the ideal benevolent, humane ruler who cared for his people and selected good advisors for his government. His fictional character was a salutary example of a ruler who adhered to the Confucian set of moral values, such as loyalty and compassion. Historically, Liu Bei was a brilliant politician and leader whose skill was a remarkable demonstration of a Legalist. His political philosophy can best be described by the Chinese idiom "Confucian in appearance but Legalist in substance (Chinese: 儒表法裡; pinyin: rú biǎo fǎ lǐ," a style of governing which had become the norm after the founding of the Han Dynasty.

Cao Cao (Mandarin pronunciation: [tsʰɑ̌ʊ tsʰɑ́ʊ]; 155 – March 15, 220) was a warlord and the penultimate chancellor of the Eastern Han Dynasty who rose to great power during the dynasty's final years. 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 was posthumously titled Emperor Wu of Wei. Although often portrayed as a cruel and merciless tyrant, Cao Cao has also been praised as a brilliant ruler and military genius who treated his subordinates like his family. He was also skilled in poetry and martial arts and wrote many war journals.

Cao was born in the county of Qiao (present day Bozhou, Anhui) in 155. His father Cao Song was a foster son of Cao Teng, who in turn was one of the favorite eunuchs of Emperor Huan. Some historical records, including the Biography of Cao Man, claim that Cao Song's original family name was Xiahou.

Cao was known for his craftiness as an adolescent. According to the Biography of Cao Man, Cao's uncle complained to Cao Song about Cao Cao's indulgence in hunting and music with Yuan Shao. In retaliation, Cao Cao feigned a fit before his uncle, who immediately rushed to inform Cao Song. When Cao Song went to see his son, Cao Cao behaved normally. When asked, Cao Cao replied, "I have never had a fit, but I lost the love of my uncle, and therefore he deceived you." Afterwards, Cao Song ceased to believe his brother regarding Cao Cao, and thus Cao Cao became even more blatant and perseverant in his wayward pursuits.