Robert enters and, in a conversation overheard by the increasingly distraught Sara, Elizabeth declares her love for him. Now alone together, Elizabeth promises Robert that the ring she once gave him will always be the pledge of his safety should he ever return it to her. The dream of bygone happy days is shattered by an inappropriate comment by Robert, who assumes that Elizabeth knows the secret of his love for Sara. The Queen, increasingly jealous, demands that Robert name the woman he loves. He denies that he loves anyone "(Nascondi, frena i palpiti)," and then the Queen leaves.