In Dioneo’s fourth tale (IV, 10), Mazzeo della Montagna marries Mazzeo’s Wife. Because she is young, pretty, and high-spirited, she is disappointed by his sexual inadequacies and takes Ruggieri d’Aieroli as her lover. In this way, she fulfills the misogynistic medieval stereotype of women’s excessive sexual appetites. But she also demonstrates the quick intelligence celebrated in The Decameron’s characters when she and her Trusted Maid handle the apparent death of her lover in the house and his subsequent arrest for a crime he didn’t commit.