In Lauretta’s fourth tale (IV, 3), Folco is a wealthy young man in love with Maddalena. He pools his wealth with Restagnone and Ughetto and runs away with them to Crete. But when Maddalena sleeps with the Duke of Crete to free Ninetta from her murder charge, Folco kills her in a fit of jealous rage, then sets out to sea with Ninetta, never to be seen again. He is thus another unlucky lover and an example of the damaging effects of immoderate jealousy and rage.