Opera seria
Wolfgang Amadeus Mozart was influenced by Gluck’s reforms.  His two great opera seria were Idomeneo (1780) and La clemenza di Tito (1791).  Mostly, however, Mozart was not so interested in writing about the old Greek gods and kings.  His other great Italian operas: Cosi fan tutte, Le Nozze di Figaro and Don Giovanni are something between opera seria and opera buffa.  These were set to libretti by Lorenzo da Ponte.