Mantegna is a famous painter of 15th century Italy. The word "INVID", which is inscribed on the plate the old woman with a terrifying look is holding, is an abbreviation of INVIDIA, the Latin word for "jealousy". Regarding the interpretation of the theme of this mysterious print, some say it has to do with ichthyophagists referred to in "Bibiliotheca historica" by the ancient Greek historian Diodorus while others identify general literature of the time including Strabo's "Geography" as the source. This print is the left half of an oblong composition of a sequential frieze. (Source: The Digital Gallery. 1999-2006)