British caricaturist James Gillray's "scathing satires of royalty, leading politicians and the French elite terrified his targets… The Prince Regent, later George IV, tried to buy as many copies as possible to take them out of circulation."
Some of James Gillray's cartoons are available at Wikimedia Commons. That's where I found the famous illustration below, "The Plumb-Pudding in Danger," which depicts British Prime Minister William Pitt and French emperor Napoleon Bonaparte carving up the world. According to Wikimedia, this image is in the public domain.