The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
(from Mongolian bogdokhan, “sacred ruler”), the term used in Russian sources of the 16th and 17th centuries to describe the emperor of China. It is also used in this meaning in other literature.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.