Are both Eine florentinische Tragödie and Alceste operas?
Alceste (Gluck) Alceste, Wq. 37 (the later French version is Wq. 44), is an opera by Christoph Willibald Gluck from 1767. The libretto (in Italian) was written by Ranieri de' Calzabigi and based on the play "Alcestis" by Euripides. The premiere took place on 26 December 1767 at the Burgtheater in Vienna.
Il barone di Trocchia Il barone di Trocchia was the first of fifty-one operas written by Italian composer Giuseppe Gazzaniga. The two-act intermezzo has an Italian libretto by Francesco Cerlone and premiered at the Teatro Nuovo in Naples, Italy during carnival 1768.