Bianca e Falliero
To reconcile a feud between rival Venetian families, Contareno promises his daughter Bianca to Capellio. Bianca loves Falliero, who is believed to have died defending Venice. Falliero returns, and Bianca refuses to sign the marriage certificate. He flees when Contareno threatens him, but is captured and charged with treason after being found in the Spanish Embassy. Bianca pleads for him before the Council of Three, whose members include Contareno, Capellio and Loredano. Capellio is moved by her appeal and agrees that the lovers belong together.