Bernabò Lomellin appears in Filomena’s second tale (II, 9). He is a Genoese merchant who brags that his wife (Zinerva) is the best and most chaste wife in the world and places a wager on it with another merchant called Ambrogiuolo. When Ambrogiuolo offers “proof” that he’s seduced Zinerva, Bernabò believes him more easily than he believes his supposedly excellent wife. He has a proud character and is quick to anger, trying to have Zinerva murdered when he thinks she’s cheated. Nevertheless, his fortune, which falls after his repudiation of his wife, eventually rises again when she reveals Ambrogiuolo’s trick and reunites with her husband.