 When the King of Far Far Away (John Cleese (qv)) excuses himself  to go speak to the Fairy Godmother, he refers to his old injury from  the crusades acting up. This is a reference to Basil Fawltys (also  Cleese) "old war wound" acting up as an excuse for his actions in  the series _"Fawlty Towers" (1975)_ (qv).