Le due duchesse
Le due duchesse or La caccia dei lupi is a semiseria opera in two acts by Johann Simon Mayr to a libetto by Felice Romani which was premiered 7 November 1814 the at La Scala in Milan and revived in 1819 at the Teatro San Carlo, Naples. Romani used his libretto again with a few changes for a new setting by Filippo Celli (1782–1856) for Florence on 8 September 1824.