In a room in Kenilworth Castle, Trussell and the Bishop of Winchester try to convince Edward to step down from the throne and cede authority to his son. Edward makes a speech that is full of self-pity, regret, and contempt for the betrayers. He says that even if his son sits on the throne, Mortimer will be the true ruler. Therefore, he refuses their arguments. The men leave to give his answer to Parliament, but Leicester asks Edward to bring them back. He says that unless Edward’s resignation is voluntary, his son will be disinherited. Edward cannot bear the thought, so he asks the men to return. He relinquishes his crown and asks that they give his handkerchief to the queen. Lord Berkeley enters the room and says that Edward has been transferred into his custody.  

Isabella learns from Mortimer that the king’s flatterers have been put to death. Mortimer says that he will gladly serve as Regent during her son’s reign. Isabella trusts his judgment and says that she will go along with whatever he thinks is best. The Bishop of Winchester and a messenger arrive. They tell her that Edward gave up his crown, but also that his brother