The tragic myth of Agamemnon, Mycenae's 'king of kings', who sacrificed his own daughter in order to sack the great city of Troy and returned home only to be assassinated by his wife and her lover, has been a constant source of fascination for writers and artists from classical Greece right up to the present day. The ancient Romans were drawn to the myth, but Seneca's tragedy is the only dramatic treatment from this tradition to have survived intact:...