Isn't Zhongdu, Shangdu, Dadu and Nanjing the ancient names of Beijing?

Apart from Shangdu, Zhongdu, Dadu and Nanjing, there are also Yanjing, Ji Cheng, Zhuo Jun, Youzhou and Peiping.

Shangdu is located in Zhenglan Banner, Xilin Gol League, Inner Mongolia Autonomous Region, on the northwest lightning river in Duolun County. The theme of the application for World Heritage in Yuanshangdu, Inner Mongolia is the grassland landscape environment of cultural relics, which highlights the historical and cultural value and special historical position of Yuanshangdu, further expounds the historical characteristics and environmental particularity of Yuanshangdu in the ecotone between grassland and agriculture and animal husbandry, and reveals the historical authenticity, integrity, uniqueness and undeniable universal value of the application for World Cultural Heritage in Yuanshangdu.

Extended data:

In the first year of Zhenyuan in Jin Dynasty (1 153), Di Chin Yan Hongliang officially established Beijing as the capital, which was called Zhongdu in history.

In the ninth year of the Yuan Dynasty (1272), Daxing House in Zhongdu was officially renamed Dadu Road (Turkic: Khanbalik, meaning "Khan City", transliterated as cambaluc and Gambalik), which was also the capital of the Yuan Dynasty.

In the 19th year of Yongle (142 1), the central government of the Ming Dynasty officially moved its capital to Beijing, with Shuntianfu Beijing as its capital and Yingtianfu as its capital, which was called Nanjing.

Baidu Encyclopedia-Beijing

Baidu encyclopedia-shangdu