Sir John Oldcastle pentameter verse lines in both parts are irregular when using the name "Falstaff," but correct with "Oldcastle." Finally, there is the blatant disclaimer at the close of "Henry IV, Part 2" that disassociates the two figures: "for Oldcastle died [a] martyr, and this is not the man" (Epilogue, 29-32). There is even a hint that Falstaff was originally Oldcastle in "The Merry Wives of Windsor" too. When the First Folio and quarto texts of that play are compared, it appears that the joke in V,v,85-90 is that Oldcastle/Falstaff incriminates himself by calling out the first letter of his name, "O,
John Shakespeare jest with him at any time." As Katherine Duncan-Jones points out, this is impossible, since Mennes was two years old when John Shakespeare died. She thinks Plume may have been recording an anecdote related by Mennes taken from his father. In the 18th century a tract signed by John Shakespeare, in which he pledged to remain a Catholic in his heart, was found in the rafters of the house on Henley Street. It was seen and described by the scholar Edmond Malone. Although it was subsequently lost, a very similar copy of the formulaic text came to light in the