Zhao Xigu or Chao Hsi-Ku
Chinese, 12th – 13th century, male.
Active c. 1190 or c. 1230.
Zhao Xigu was an erudite artist who wrote the Dong Tian Qing Lu Ji, a guide for aesthetes and antique collectors. The book has 10 chapters, one of which concerns painting. It contains valuable information on the practices of various painters and discusses mounting, the positioning of signatures and seals, and copies and forgeries. His book is still useful, especially when it comes to problems of authentication....