A reworking of Shakespeare's tragedy of the same name, Verdi's Macbeth received its first performance in Florence in March 1847, although the heavily revised version of 1865 is the one that is almost always performed today. The subject matter is dark and was little known in Italy in Verdi's day. Moreover, the opera contains no real love story. For all these reasons Verdi was taking a huge risk in tackling the subject.