Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: The king's mistress

This is a breezy telling of the somewhat spotted history of royal mistresses, from King David & Bathsheba down to Prince Charles & Camilla. There's a rather light-hearted approach to the subject, but it does go into detail of the lives of the women who seduced, or were seduced by, various monarchs. Interwoven in the tale is much of European history, and a lot of diplomacy which was occasionally (mis)managed by politically ambitious mistresses. The ends of mistresses varied greatly, from death in childbirth, to dismissal with pensions or not, to long lives with their husbands, to early death from illness, to being murdered. The story of the Duke and Dutchess of Windsor is particularly interesting, for it puts a different slant on that affair than I had ever considered, and for that bit of information alone I consider the book well worth reading.