 Complete the following phrase:  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,8590 is that OldcastleFalstaff incriminates himself by calling out the first letter of his name, O, O, O!, when his fingertips are singed with candleswhich of course works for Oldcastle but not Falstaff. There is also the castle reference in IV,v,6 of the same play. The name Falstaff was derived from Sir John Fastolf, who was also a historical personallegedly a greedy and grasping individual, who had a probably undeserved reputation for cowardice at the 