The "Vows of the Peacock" - written in 1312 and dedicated to Thibaut de Bar, bishop of Liège - recounts how Alexander the Great comes to the aid of a family of aristocrats threatened by Indians. The poem remained popular throughout the fourteenth century and was soon followed by two sequels. Twenty-six illuminated manuscripts constitute part of a catalogue and concordance of all Peacock manuscripts. One of the most provocative, (PML, MS G24), has twenty-two miniatures which illustrate chivalry and courtly love, as epitomized in the text. An unusually high number of scurrilous marginalia, however, surround them. An interdisciplinary exploration of iconography, reception, image-text-marginalia dynamics, and context reveals their ultimate polysemy as scatological comedians and serious harbingers of sin.