(Ponchielli: La gioconda). Bar. A spy of the Inquisition. Wants to possess la Gioconda, who rejects him. Tricks the nobleman Enzo into meeting his lover Laura, now married to Alvise. Gioconda helps the lovers escape, and rather than fulfil her promise to give herself to Barnaba in return for Enzo's life, she kills herself. As she dies, Barnaba screams at her that he has strangled her old blind mother. Created (1876) by Gottardo Aldighieri.