Guy Fawkes and the Gunpowder Plot to Obliterate the British House of Lords ; Gunpowder, Prostitutes, and Neuroscience: What is the Explosive History of Pitié-Salpêtrière Hospital? Earliest picture of a European cannon using the first medieval gunpowder recipes. De nobilitatibus, sapientiis et prudentiis regum, Walter de Milemete, 1326.
https://www.ancient-origins.net/news-history-archaeology/medieval-gunpowder-0015865

