Diane de Poitiers, mistress of King Henry II of France, was known for her youthful looks, which kept the interest of the king, twenty years her junior, but did her vanity and desperation lead to her death? Experts believe they did.
Diane's secret to youthful beauty? "The elixir she drank every day made up of gold chloride and diethyl ether." A recent article by three French scientists in the British Medical Journal discusses analysis of her bones, which "were found to contain gold 500 times above normal levels, as well as mercury – used as a "purifier" in the elixir."