There’s a typo in the text. Normally I don’t worry about these, but when it’s a name that only appears once … anyway, on p. 707 where it’s referring to “the corrupt favorite” of the Qianlong Emperor, the name is given as “Hensho” when it should be “Heshen” (or “Hoshen” in the old Wade-Giles system, which is probably where the typo came from).