Raw pork and nightmares
Henry Fuseli (see blue plaque below) would not have appreciated posterity sticking him above a Domino's Pizza Shop. Vain, intellectually arrogant, and sexually voracious he was a prominent figure in London's artistic community in the 1790s. He's a minor character in my book - I had not heard of him before I wrote it, but wanted to know everything once I'd discovered that Mary Wollstonecraft wanted to set up a ménage-a-trois with him and Joseph Lavater, the famous physiognomist, had been his lover. He was famous for eating raw pork to inspire his paintings, and his most notorious work, The Nightmare (see above), was one of the most copied, and - as you can imagine - parodied images of its time.