John Cleese on a coin! Bronze Follis of Diocletian. This was a new denomination introduced as part of his reforms of the coinage. The reverse design features 'The Genius of the Roman People'. While working with the image of the follis on this page, it suddenly struck us that the portrait looked like John Cleese. When we think about the similarity in names, perhaps John Cleese is a descendant of the emperor Diocletian!