Bernabò Lomellin appears in ’s second tale (II, 9). He is a Genoese merchant who brags that his wife () is the best and most chaste wife in the world and places a wager on it with another merchant called . 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 , which falls after his repudiation of his wife, eventually rises again when she reveals Ambrogiuolo’s trick and reunites with her husband.