text: A cartoon by James Gillray depicts this man holding the leader of a neighboring country in his hand, parodying Gulliver's Travels.
full_question: A cartoon by James Gillray depicts this man holding the leader of a neighboring country in his hand, parodying Gulliver's Travels. As part of an uprising during this man's reign, the walls of Newgate Prison were painted with the words "His Majesty, King Mob." During this man's reign, Spencer Perceval became the first British PM to be assassinated, and he faced the anti-Catholic Gordon Riots in his capital. This monarch, who ruled during the ministry of William Pitt the Younger, may have suffered from mental illness late in life due to porphyria. For 10 points, name this British monarch who dealt with the Napoleonic Wars after losing Britain's colonies in America.
first_sentence: A cartoon by James Gillray depicts this man holding the leader of a neighboring country in his hand, parodying Gulliver's Travels.
raw_answer: George III [prompt on George]