What is the Montresor family coat of arms?

The Montresor family coat of arms, as described in Edgar Allan Poe's "The Cask of Amontillado," features a large gold foot crushing a serpent whose fangs are embedded in the heel. This imagery symbolizes the family's motto, "Nemo me impune lacessit," which translates to "No one attacks me with impunity." The coat of arms reflects themes of revenge and justice central to the story, highlighting Montresor's desire to enact vengeance on Fortunato.