>authors believe Catherine to be the creator of the Black Mass, a Satanic inversion of the traditional Catholic Mass, although there is little to prove this aside from Jean Bodin's account in his book De la démonomanie des sorciers. Nevertheless, Catherine was never formally accused or prosecuted despite the fact that her reign experienced the greatest number of prosecutions for Witchcraft in Italy. This lends some weight to the suggestion that people were labelled 'witches' simply because they did not act the way a woman would have been expected to act, or simply to suit personal or political agendas.
https://en.wikipedia.org/wiki/Black_Mass