Biography
Cao Pi style name Zihuan, was the first emperor of the state of Cao Wei in the Three Kingdoms period. He was born in Qiao (譙; present-day Bozhou, Anhui) as the second son of Cao Cao, a warlord who lived in the late Eastern Han Dynasty. However, he was the eldest son among all the children born to Cao Cao by his concubine (later wife) Lady Bian. Of all his brothers, Cao Pi was the most shrewd. Instead of focusing on academic studies or administering military affairs, he was always in the presence of court officials in order to gain their support.[citation needed] He was mostly in charge of defence[clarification needed] at the start of his career. After the defeat of Cao Cao's rival Yuan Shao at the Battle of Guandu, he took the widow of Yuan Shao's son Yuan Xi, Lady Zhen, as a concubine, although eventually she lost his favour and was forced to commit suicide. After he became emperor, his other favourite, Guo Nüwang, became empress.
In 220, Cao Pi forced Emperor Xian, the last ruler of the Han Dynasty, to abdicate the throne to him, and he proclaimed himself emperor and established the state of Cao Wei. Cao Pi continued the wars against the states of Shu Han and Eastern Wu, founded by his father's rivals Liu Bei and Sun Quan respectively, but did not make much significant territorial gains in the battles. Unlike his father, Cao Pi concentrated most of his efforts on internal administration rather than on waging wars against his rivals. During his reign, he formally established Chen Qun's nine-rank system as the base for civil service nomination, which drew many talents into his government. On the other hand, he drastically reduced the power of princes, stripping off their power to oppose him, but at the same time, rendering them unable to assist the emperor if a crisis arose within the state. After Cao Pi's death, his successor Cao Rui granted him the posthumous name "Emperor Wen" and the temple name "Shizu".
Cao Pi was also an accomplished poet and scholar, just like his father Cao Cao and his younger brother Cao Zhi. He wrote Yan Ge Xing (燕歌行), the first Chinese poem in the style of seven syllables per line (七言詩). He also wrote over a hundred articles on various subjects.
Cao Pi was the eldest son of Cao Cao and his concubine Lady Bian, but he was the second among all of Cao Cao's sons. At the time of Cao Pi's birth, Cao Cao was a mid-level officer in the imperial guards in the capital Luoyang, with no hint that he would go on to the great campaigns he eventually carried out after the collapse of the imperial government in 190. In the period after 190 when Cao Cao was constantly waging war against other rival warlords, it is not known where Cao Pi and Lady Bian were, or what they did. The lone reference to Cao Pi during this period was in 204, when he took Yuan Xi's wife Lady Zhen as his wife.
The next immediate reference to Cao Pi's activities was in 211, when he was appointed General of the Household for All Purposes (五官中郎將) and Vice Chancellor (副丞相). This position placed him second to his father, who was then Chancellor (丞相) and the de facto head of government in China. The eldest of all of Cao Cao's sons, Cao Ang, had died early, so Cao Pi was regarded as the eldest among all his father's sons. Besides, Cao Pi's mother had also become Cao Cao's official spouse after Cao Cao's first wife Lady Ding was deposed. Cao Pi thus became the presumptive heir to his father.
However, Cao Pi's status as heir was not immediately made legal, and for years there were lingering doubts on whom Cao Cao intended to make heir. Cao Cao greatly favoured Cao Zhi (his third son with Lady Bian), who was known for his literary talents. Both Cao Pi and Cao Zhi were talented poets, but Cao Zhi was more highly regarded as a poet and speaker. By 215, the brothers appeared to be in harmony with each other, but each had his own group of supporters and close associates engaging the other side in clandestine rivalry. Initially, Cao Zhi's party appeared to be prevailing, and in 216 they were successful in falsely accusing two officials supporting Cao Pi - Cui Yan and Mao Jie. Cui Yan was executed, while Mao Jie was deposed. However, the situation shifted after Cao Cao received advice from his strategist Jia Xu, who concluded that changing the general rules of succession (primogeniture) would be disruptive — using Yuan Shao and Liu Biao as counterexamples. Cao Pi was also fostering his image among the people and created the sense that Cao Zhi was wasteful and lacking actual talent in governance. In 217, Cao Cao, who had received the title of a vassal king - "King of Wei" (魏王) - from the Han Dynasty's ruler Emperor Xian (whom Cao Cao still paid nominal allegiance to), finally declared Cao Pi as his Crown Prince (太子). Cao Pi would remain as such until his father's death in 220.
An immediate issue after Cao Pi became emperor in 220 was who the empress would be. Lady Zhen was his consort, but by this point she had long lost favour due to a variety of reasons - including the struggle she had with a favourite consort of Cao Pi's, Guo Nüwang. Cao Pi therefore refused to summon Lady Zhen to Luoyang after he ascended the throne but instead ordered her to remain at Ye, which caused Lady Zhen to be resentful. When words of her resentment reached Cao Pi, he became angry and forced her to commit suicide. In 222, Cao Pi instated Guo Nüwang as his empress.
Guo Nüwang did not bear Cao Pi any children. Cao Rui was the eldest of Cao Pi's sons, but because of his mother's death, he was not instated as the crown prince. Instead, Cao Rui was appointed "Prince of Pingyuan" after his father's ascension to the throne. Cao Pi did not appear to have seriously considered any other son as heir. (It might have been because the other sons were all significantly younger, although their ages were not recorded in history.) In the summer of 226, when Cao Pi was seriously ill, he finally named Cao Rui as his crown prince. On his deathbed, he entrusted Cao Rui to the care of Cao Zhen, Chen Qun, and Sima Yi. Following his father's death, Cao Rui ascended the throne at the young age of 21.
