Cao Wei

Wei
220–266 AD
China in 262 AD, with territories of Cao Wei in yellow
Capital
Common languagesEastern Han Chinese
Religion
Taoism, Confucianism, Chinese folk religion
GovernmentMonarchy
Emperor 
• Dec 220 – Jun 226 AD
Cao Pi
• Jun 226 – Jan 239 AD
Cao Rui
• Jan 239 – Oct 254 AD
Cao Fang
• Oct 254 – Jun 260 AD
Cao Mao
• Jun 260 – Feb 266 AD
Cao Huan
Historical eraThree Kingdoms
• Abdication of Emperor Xian of Han
11 December 220 AD
• Eastern Wu declaring independence from Wei
222
263
• Abdication of Cao Huan
4 February 266 AD
Population
• 260
4,432,881 (disputed)
CurrencyChinese coin, Chinese cash (Wu Zhu)
Preceded by
Succeeded by
Eastern Han
Western Jin
Today part of
Cao Wei
Traditional Chinese曹魏
Simplified Chinese曹魏
Hanyu PinyinCáo Wèi
Transcriptions
Standard Mandarin
Hanyu PinyinCáo Wèi
Bopomofoㄘㄠˊ ㄨㄟˋ
Gwoyeu RomatzyhTsaur Wey
Wade–GilesTsʻao2 Wei4
Tongyong PinyinCáo Wèi
Yale RomanizationTsáu Wèi
IPA[tsʰǎʊ wêɪ]
Yue: Cantonese
Yale RomanizationChòuh Ngaih
JyutpingCou4 ngai6
IPA[tsʰɔw˩ ŋɐj˨]
Southern Min
Hokkien POJChô Gūi
Tâi-lôTsô Guī

Wei (Chinese: ), also known as Cao Wei (曹魏) or Former Wei, was one of the major dynastic states in China during the Three Kingdoms period. The state was established in 220 AD by Cao Pi based upon the foundations laid by his father Cao Cao during the end of the Han dynasty. Its capital was initially located at Xuchang, and was later moved to Luoyang.

The name Wei first became associated with Cao Cao when he was named the Duke of Wei by the Eastern Han government in 213 AD, and became the name of the state when Cao Pi proclaimed himself emperor in 220 AD. Historians often add the prefix "Cao" to distinguish it from other Chinese states known as Wei. The authority of the ruling Cao family dramatically weakened following the deposition and execution of Cao Shuang, a regent for the dynasty's third emperor Cao Fang in 249 AD. Following Cao Shuang's death, another regent, Sima Yi, gradually consolidated state authority for himself and his relatives, with the last Wei emperors largely being puppets of the Sima family. In 266 AD, Sima Yi's grandson Sima Yan forced Emperor Yuan to abdicate, proclaiming himself to be emperor of the newly established Jin dynasty; he would be posthumously known as Emperor Wu (of Jin).