How the character known as Ygor (or Igor, or is it Fritz?) evolved as an icon of American pop culture, from the classic Universal monster movies of the mid-twentieth century to Epic Universe theme park. archiveofourown.org/works/75922031

I highly recommend Suetonius' Twelve Caesars for insights into what happens when spoiled, entitled dark personality disordered incompetents are given absolute power over a republican empire.