The capital of the Eastern Han Dynasty was Luoyang until 189. In September 189, Dong Zhuo's grandson burned Luoyang, captured Emperor Xian, and threatened Chang'an, the capital. I can't remember clearly in 195 or 196, before I was captured by Cao Aman and taken to Xudu. Therefore, the capital city Chang'an mentioned by the poster is an illegal imperial capital that is not accepted by the people of the country. If you want to know its location, it should be said that it is not 100% Xi'an now, but should be near Xianyang and Xi'an.

(Mobile phone party, asking for rewards)