Antony and Cleopatra is a tragedy by William Shakespeare. The plot is based on Thomas North's translation of Plutarch's Lives and follows the relationship between Cleopatra and Mark Antony from the time of the Sicilian revolt to Cleopatra's suicide during the Final War of the Roman Republic. The major antagonist is Octavius Caesar, one of Antony's fellow triumviri and the future first emperor of Rome. The tragedy is a Roman play characterised by swift, panoramic shifts in geographical locations and in registers, alternating between sensual, imaginative Alexandria and the more pragmatic, austere Rome.