While Chudleigh’s story has the makings of a very good period-piece dramedy, it is less successful as a deeply researched historical biography. In addition to recounting Chudleigh’s many escapades, Ostler attempts to find the origin of the duchess’s behavior and motivations; she superficially links them to an unhappy childhood, an ill-defined personality disorder, celebrity, and early feminism in a patriarchal misogynist society. Readers will need a great deal of tolerance to wade through the book’s anecdotes of the rich behaving badly.