La serva padrona (The Servant Turned Mistress) is an opera buffa by Giovanni Battista Pergolesi (1710 – 1736) to a libretto by Gennaro Antonio Federico, after the play by Jacopo Angello Nelli.
 The opera is only 45 minutes long and was originally performed as an intermezzo between the acts of a larger serious opera.
 (The same libretto was set by Giovanni Paisiello in 1781.)
Proserpine is a French-language opera by the Italian composer Giovanni Paisiello.
 It takes the form of a "tragédie lyrique" in three acts.
 The libretto, by Nicolas-François Guillard, is a reworking of Philippe Quinault's "Proserpine".
 Paisiello's opera was first performed on 28 March 1803 at the Paris Opéra.
Il re Teodoro in Venezia is a 1784 comic opera by Giovanni Paisiello to a libretto Giovanni Battista Casti.
 Premiered at the Burgtheater Vienna, it was revived for Carnival in Parma in 1788.
Giovanni Battista Lorenzi (1721–1807) was an Italian librettist.
 He was born and died in (Naples, and was a friend of Giovanni Paisiello, with whom he collaborated on numerous operas.
The Bedřich Smetana Museum (Muzeum Bedřicha Smetany) in Prague is a museum which is dedicated to the life and works of famous Czech composer Bedřich Smetana (1824–1884).
 It is situated in the centre of Prague in a small block of buildings right next to Charles Bridge on the right bank of the river Vltava in the Old Town (Novotného lávka 1, 110 00 Praha 1).
Bedřich Smetana (] ; 2 March 1824 – 12 May 1884) was a Czech composer who pioneered the development of a musical style which became closely identified with his country's aspirations to independent statehood.
 He is thus widely regarded in his homeland as the father of Czech music.
 Internationally he is best known for his opera "The Bartered Bride" and for the symphonic cycle "Má vlast" ("My Homeland"), which portrays the history, legends and landscape of the composer's native land.
Giovanni Paisiello (or Paesiello; 9 May 1740 – 5 June 1816) was an Italian composer of the Classical era.
The Teatro Donizetti is an opera house in Bergamo, Italy.
 Built in the 1780s using a design by architect Giovanni Francesco Lucchini, the theatre was originally referred to as either the Teatro Nuovo or Teatro di Fiera.
 The first opera to be mounted at the theatre, Giuseppe Sarti's "Medonte, re di Epiro", was in 1784 while the opera house was still under construction.
 The official opening of the house, under the name the Teatro Riccardi, did not occur until 24 August 1791 with a production of Pietro Metastasio's "Didone abbandonata" set to music by multiple composers, including Ferdinando Bertoni, Giacomo Rampini, Johann Gottlieb Naumann, Giuseppe Gazzaniga, and Giovanni Paisiello.
Nina, o sia La pazza per amore ("Nina, or the Girl Driven Mad by Love") is an opera, described as a "commedia in prosa ed in verso per musica", in two acts by Giovanni Paisiello to an Italian libretto by Giambattista (also "Giovanni Battista") Lorenzi after Giuseppe Carpani's translation of Benoît-Joseph Marsollier's "Nina, ou La folle par amour", set by Nicolas Dalayrac in 1786.
Below is a List of compositions by Bedřich Smetana sorted by genre, catalogue numbers, original and English titles.
 JB numbers are from "Tematický katalog skladeb Bedřicha Smetany" (Thematic Catalogue of Works by Bedřich Smetana) by Jiří Berkovec (Prague, 1999).
 B. numbers are from the catalogue by František Bartoš.
 T. numbers are from the 1893 catalogue by Karel Teige.

Question: Are Giovanni Paisiello and Bedřich Smetana of the same nationality?
Answer: no