[EMLS 3.2 (September, 1997): 2.1-61] The Poetic Nocturne: From Ancient Motif to Renaissance Genre “Night-walking” for instance is a crime for the medieval commoner (a royal charter of 1347 granted Bristol the right to imprison nightwalkers, for their motivation could only be felonous), but becomes a pious and aesthetic convention for the well-to-do, urban scholar…