Catella is the object of Ricciardo Minutolo’s affections in Fiammetta’s third tale (III, 6). Her extreme and jealous devotion to her husband, Filippello Sighinolfo, leaves her vulnerable to Ricciardo’s manipulations. She demonstrates the dangers of immoderation (even immoderate love for one’s spouse), and the punishment for her immoderation highlights the inherent vulnerability of women to male subterfuge and blackmail.