Cássio is arrested by Romero. Rodolfo orders Romero to take Cássio to the dungeon. Rodolfo tells Afonso that he is banned from the court. Virgílio reveals to Catarina that, in order for Afonso to be arrested, the meetings must be held and Cássio must be released. Tiago confesses to Diana that he no longer has the same feelings for her. Afonso is shocked to see people revering him.