Constant appears in Panfilo’s second tale (II, 7), where he is the son of the Emperor of Constantine and the Duke of Athens’ brother-in-law. When the Prince of Morea’s allies attack Athens in revenge for the murder of the Prince, Constant supports the Duke. But he also ends up falling in love with Alatiel and takes advantage of the Duke’s absence to turn his responsibilities over to his nephew Manuel, return to Athens, kidnap her and take her to an island near Turkey. Subsequently, he himself is kidnapped by Uzbek.