Outside a tavern by the river at dusk the crowd is entertained with a tarantella. The subject of the Venetian tyrant comes up, and people are persuaded join the plot to assassinate him. Rodolfo enters, reporting that Galeofa has betrayed them. When the latter enters, the crowd mortally wounds him. After Angelo and his troops come on the scene, Galeofa gives Angelo an unsigned letter to Catarina from a young man, then dies. The rebellion is defeated.
