In history, Cao Cao (Cao Wei), Liu Bei (Shu Han) and Sun Quan (Sun Wu) have changed a lot of places, such as Cao Cao from Dongjun, at first ruled in Dongwuyang, and later transferred to Juancheng, and then moved to Xuchang, after the capture of Jizhou, opened the dual-core era of Xuchang and Yecheng, and Cao Pi moved the capital to Luoyang after the Han Dynasty.

Liu Bei was first in the plains, and then in Xiaopei, Xiapi, Xiaopei, Peicheng, Xiaopei, Xinye, Fancheng, Gong'an, and Chengdu; Sun Jian ruled Yangcheng (possibly Yangren City) in Yuzhou, Sun Ce was mainly in Qu'a, Sun Quan was first in Qu'a, and then in Moling (Jianye), and after conquering Jingzhou, he was in Ezhou (Wuchang), and called the emperor in Wuchang, and moved the capital to Jianye, and moved back to Wuchang during the Sun Hao period.

【Changes to Cao Wei's Lair】

Cao Cao made his fortune from Yanzhou, so at the beginning he mainly took Dongwuyang and Juancheng in Yanzhou as his own place of governance, after moving the capital to Xuchang, Xuchang became the base camp of Cao Cao's forces, and after conquering Jizhou, Cao Cao served as the pastor of Jizhou, Yecheng also became one of Cao Cao's base camps, and the center of gravity of Cao Wei in the later period actually slowly changed from Xuchang to Yecheng, after Cao Pi changed the dynasty, the capital of Wei has been in Luoyang.

Cao Cao was the earliest recorded rebel after Dong Zhuo took power, but he was not a real prince at that time, and was nominally attached to Chen Liutaishou Zhang Miao, until Cao Cao led troops to pacify the invasion of Dongjun and other places, Yu Poison, Bai Huan, Zhenggu, Yu Fuluo and others, were recommended by Yuan Shao as the Taishou of Dongjun, and the governance office was located in Dongwuyang, which occupied his own territory and became a small prince. After Liu Dai's death, although Cao Cao succeeded him as the pastor of Yanzhou, there is no record of Cao Cao's change of governance.

After Yuan Shu and the Yanzhou assassin appointed by the Chang'an Imperial Court, Jin Shang marched into Yanzhou together, Cao Cao in order to rely on Yuan Shao, only moved the governance office to Juancheng, which was very close to Jizhou, but Yuan Shu's army was not as strong as before after Sun Jian's death, and was easily defeated by Cao Cao, chasing hundreds of miles, Juancheng as the base camp of Cao Cao's forces had three or four years, and Cao Cao stayed here much longer than Dongwuyang.

After Cao Cao defeated Lü Bu and established himself in Yanzhou, he began to welcome the Son of Heaven, and finally succeeded, and with the help of Dong Zhao and others, he moved the capital to Xuchang at lightning speed, and Xuchang became Cao Cao's third base camp, which was far away from Yuan Shao in the north, and Yuan Shao once proposed that Cao Cao move the capital to Juancheng but Cao Cao refused, and the relationship between the two was also rigid.

The relocation of the capital to Xuchang was a key turning point in the development of Cao Cao's power, after which Cao Cao had a great righteousness, and through this he recruited many talents, and his power developed rapidly.

Yecheng was originally the seat of Jizhou, the base camp of Han Fu and Yuan Shao, after Yuan Shao's death, Yuan Shang became the new Jizhou pastor, but he because of the infighting with his brother Yuan Tan, which led to Cao Cao taking advantage of the void, Yecheng was eventually captured by Cao Cao, after seizing Jizhou, Cao Cao broke the promise and did not let Jia Xu serve as the pastor of Jizhou, but served himself, Yecheng also became the capital of Wei when Cao Cao was crowned king in the future, in fact, Cao Cao's forces entered the dual-core era, Yecheng and Xuchang were the political centers at that time, Xuchang was the capital of the Eastern Han Dynasty, Yecheng was regarded by Cao Cao as his foundation.

During the Battle of Xiangfan, Guan Yu flooded the Seventh Army, and Cao Cao once had the idea of moving the capital, but at that time, Guan Yu's threat was only one of them, and Xuchang was no longer suitable as the capital is also one of the important reasons.

After Cao Pi became the emperor, he took Luoyang as the capital of the Wei Dynasty, and restored the title of Luoyang, Luoyang became the capital of a country again after Dong Zhuo's rebellion for 30 years, and then Cao Wei had five emperors including Cao Pi, Cao Rui, Cao Fang, Cao Chao and Cao Huan succeeded to the throne, after Sima Yan established the Jin Dynasty on behalf of Wei, Luoyang was still the capital of the Western Jin Dynasty.

[Changes to Liu Bei's lair]

Liu Bei was displaced in the early years, so he was stationed in a lot of places, he really served as a prince's seat in the early stage was mainly Xiaopei and Xiapi, respectively, as he served as the governor of Yuzhou and Xuzhou, and later his base camp in Jingzhou was located in the public security, and after occupying Yizhou, Cheng (cheng) was the place of governance.

After Liu Bei begged to rescue Tao Qian with Tian Kai, the assassin of Qingzhou, he was left behind by Tao Qian, and was recommended as the assassin of Yuzhou, stationed in Xiaopei, which was actually equivalent to becoming Tao Qian's vassal, similar to Sun Jianzhi to Yuan Shu, and then Lu Bu also did the same thing.

Liu Bei really became a prince, and his fate was still after Tao Qian's death, and he entrusted Xuzhou to him, Liu Bei became the pastor of Xuzhou, and took Xiapi as his base camp, and the seat of Xuzhou in the Eastern Han Dynasty was actually in Tan County, but this place was rarely mentioned in the late Han Dynasty.

After Liu Bei's death, Liu Bei could only rely on Xiakou because of his fiasco in Dangyang, Xiakou belonged to Liu Qi at that time, Liu Bei was just a guest residence, until after the Battle of Jiangling, Zhou Yu divided the public security and other places to Liu Bei, and Liu Bei really had his own territory. Later, the public security also became Liu Bei's administrative office in Jingzhou, but Liu Bei did not stay in the public security for a long time, and he soon accepted Liu Zhang's invitation to enter Shu.

After Liu Bei broke with Liu Zhang, he met with soldiers, and finally surrounded Cheng (Cheng) Capital, forcing Liu Zhang to surrender, he got Yizhou, Cheng (Cheng) also became Liu Bei's new base camp, and later Liu Bei also called himself emperor here, established Shu Han, Cheng (Cheng) has been the capital of Shu Han until Deng Ai, Zhong Hui and others destroyed Shu.

【Change of Sun's Base Camp】

Sun Jian, as a general under Yuan Shu, was once recommended as the assassin of Yuzhou, Sun Jian's governance in Yuzhou at that time was Yangcheng, this place is likely to be Yangren City, Sun Jian defeated Lu Bu, killed Hua Xiong, and repelled Zhou Ang, basically happened here, after Sun Jian's death, his nephew Sun Ben inherited Sun Jian's position, but after Yuan Shu's defeat in Yanzhou, it became an empty place.

Although Sun Ce failed to inherit Sun Jian's status and power because of his youth, he inherited Sun Jian's connections when he grew up, and in the future he went south to capture Jiangdong.

After Sun Ce's death, Sun Quan inherited Sun Ce's power and status, and the base camp was also in Qu'a at the beginning, and later after Zhang Hong's recommendation, Sun Quan moved the governance office to Moling, which was later renamed Jianye, and it belonged to Danyang County.

After Lü Meng and Lu Xun attacked Guan Yu and captured Jingzhou, Sun Quan first moved the governance office to Liu Bei's original base camp of public security, and then moved to Ezhou, and renamed it Wuchang, Sun Quan basically stayed in Wuchang before he was called emperor, and the capital of Wu was still set in Jianye after Sun Quan, and only Sun Hao moved back to Wuchang because of superstition, but soon returned to Jianye.