Subtitled "Filthy Palaces, Fatal Cosmetics, Deadly Medicine, and Murder Most Foul" this audiobook goes into some detail - often quite nauseating and gruesome, be warned, but at other times highly amusing, and then at others downright depressing to think people were once so ill-educated and poorly informed. It's read admirably well, given the subject matter, by Susie Berneis.
The sad, but in hindsight and with historical distance, amusing thing about the nobility of yesteryear, is that even as they had people to taste their food to catch would-be poisoners, these idiots were in fact slowly poisoning themselves by employing dumb-ass makeup containing lead and arsenic, and adding things to their diet for medicinal purposes, which were also actually poisons.
Herman's well-written book travels through history from ancient times to modern, reporting on various historical personalities, dignitaries, and royalty who had encounters with one poison or another in one way or another, from belladonna to plutonium, some of which survived, others who succumbed slowly or rapidly. This author has done her research, and it shows without being tedious.
The book is fascinating and very educational, especially if you're thinking of writing your own historical novel involving someone's untimely demise! Which I am not, but you might be! I highly commend this book as a worthy read.