Which nationality built the quadrangle in Beijing at first?

Siheyuan has always been a building of Han nationality.

Siheyuan has a long history. As early as 3000 years ago, there were complete quadrangles in the Western Zhou Dynasty in China. The remains of Jin Liang quadrangle unearthed from Joo Won? site in Feng Chu village, Qishan County, Shaanxi Province, are the earliest and most orderly quadrangles known in China.

By the Han Dynasty, quadrangle architecture had a new development. Influenced by geomantic omen theory, quadrangles have a whole set of views of Yin-Yang and Five Elements from site selection to layout. In the Tang Dynasty, quadrangles inherited the Han Dynasty and the Song and Yuan Dynasties, with a narrow front and a narrow back.

During the Yuan, Ming and Qing Dynasties, quadrangles gradually matured. Yuan Shizu Kublai Khan ordered eight acres of land to be distributed to wealthy businessmen and officials who went to the metropolis to build houses, thus beginning the period of large-scale formation of traditional quadrangles in Beijing. In the early 1970s, the ruins of Yuan Dynasty quadrangles unearthed in Houyingfang Hutong, Beijing, can be regarded as the embryonic form of Beijing quadrangles. After the Ming and Qing Dynasties, Beijing's unique quadrangle architectural style was gradually formed.