'. . .here the path wound between two bigger stone houses, each with five chortens on the roof. They had been the dormitories and living-quarters of the eight hundred lamas who in the time of Ch'ien-lung served the Potala.' (Jehol: city of emperors). The city of Jehol is now known as Chengde and in 1956, the Jehol province became part of Hebei province. The two largest temples at Chengde are modeled after the Potala in Lhasa, Tibet and the Trashihunpo monastery at Xigaze.
Source of Descriptive Information
Hedin, S. (1933). Jehol: city of emperors. New York: E.P. Dutton & Company, Inc. (p. 20).