Chengde, formerly known as Jehol and Rehe, is a prefecture-level city in Hebei province, situated about 225 kilometres (140 mi) northeast of Beijing. It is best known as the site of the Mountain Resort, a vast imperial garden and palace formerly used by the Qing emperors as summer residence. The permanent resident population is approximately 3,473,200 in 2017.

Hebei is a province in North China. Hebei is China's sixth most-populous province, with over 75 million people. Shijiazhuang is the capital city. The province is 96% Han Chinese, 3% Manchu, 0.8% Hui, and 0.3% Mongol. Varieties of Chinese spoken include Jilu Mandarin, the Beijing dialect of Mandarin, and Jin Chinese.