The stories of four particularly disastrous aristos who wiped out their family fortunes. This is, sadly, a book of two halves. The first two stories are wildly entertaining, gossippy, sarcastic accounts of the Herveys and Fitzgeralds, with plenty of amusing digressions and sarky comments and footnotes. (eg Carr, Lord Hervey is "relentlessly promiscuous, even by the demanding standards of the 18th-century court.") Thoroughly enjoyable.
Unfortunately the second two, covering the last duke of Manchester and the recent marquess of Bristol are just...unpleasant, tbh: prurient accounts of thoroughly nasty, self-indulgent, spoiled, horrible, badly damaged and grotesquely entitled men. I don't know why the tone changes so dramatically--possibly the author got sick of these bloody people and I couldn't blame him, or maybe it's to do with the latter stories being more recent; it's more fun to spectate human car crashes from a greater distance of time? Either way, I regretted reading the third and only skimmed the fourth, which I found honestly distasteful in the way the (ghastly) subject matter was treated (putting John's bisexuality on a par with his drug use, horrific lack of consideration and dishonesty).
Pity, because the first half was great fun. My ebook was also terribly formatted (Kobo) with random tiny font paragraphs and some lazy footnote errors--again all in the second half, so it looks like the editor/formatter lost enthusiasm along with author and reader.