Afonso confesses to Amália that he doesn't know who he will support in the face of the war between Montemor and Artena. Virgílio tries to escape the city, but is approached by a soldier. Demetrius does not agree with Catarina's attack strategy. Augusto reprimands Catarina for her decisions against the people of Montemor and orders a peace negotiation. Afonso tells his brother that he will stay by Augusto's side.