Don Pedro is the Prince of Arragon and Don John's brother. At the start of the play he returns from the wars with Benedick and Claudio. When Claudio confesses that he is in love with Hero ...

Don John is jealous of the close relationship Don Pedro has with Claudio ... asks Borachio and Conrade to help him trick Claudio into thinking that Hero, his fiancée, has been unfaithful to ...