Question: Are La traviata and Khovanshchina both operas ?

Context articles: Virginia Zeani
La Traviata (1983 film)
Anthony Michaels-Moore
Maria Spezia-Aldighieri
Khovanshchina
Becoming Traviata
Reno Andreini
La traviata discography
Rolando Panerai
La traviata

Virginia Zeani (born Virginia Zehan; 21 October 1925), Commendatore OMRI is a Romanian-born opera singer who sang leading soprano roles in the opera houses of Europe and North America.
 As a singer, she was known for her dramatic intensity and the beauty, wide range, and suppleness of her voice which allowed her to sing a repertoire of 69 roles ranging from the heroines in belcanto operas by Rossini and Donizetti to those of Wagner, Puccini and Verdi.
 She also created roles in several 20th-century operas, including Blanche in Poulenc's "Dialogues of the Carmelites".
 Zeani made her professional debut in 1948 as Violetta in "La traviata" which would become one of her signature roles.
 After her retirement from the stage in 1982, she became a well-known voice teacher.
 She was married to the Italian bass Nicola Rossi-Lemeni from 1957 until his death in 1991.
 A Distinguished Professor Emerita at Indiana University's Jacobs School of Music where she taught for many years, Zeani lives in Palm Beach County, Florida and has continued to teach singing privately.
La Traviata is a 1983 Italian film written, designed, and directed by Franco Zeffirelli.
 It is based on the opera "La traviata" with music by Giuseppe Verdi and libretto by Francesco Maria Piave.
 Soprano Teresa Stratas, tenor Plácido Domingo, and baritone Cornell MacNeil starred in the movie, in addition to singing their roles.
 The film premiered in Italy in 1982 and went into general release there the following year.
 It opened in theatres in the U.S. on April 22, 1983.
 The movie's soundtrack with James Levine conducting the Metropolitan Opera Orchestra won a Grammy Award for Best Opera Recording.
Anthony Michaels-Moore (born 8 April 1957) is an English operatic baritone and the first British winner of the Luciano Pavarotti International Voice Competition (Philadelphia, 1985) Anthony has since performed in many of the world's major opera houses across Europe, the Americas, and Asia.
 He has distinguished himself as a specialist in Verdi and Puccini roles, most renowned for his portrayals of Falstaff, Nabucco, Rigoletto, Simon Boccanegra, Iago in "Otello", Germont in "La traviata", Sharpless in "Madama Butterfly", and Scarpia in "Tosca".
 In addition to the standard repertoire, he has sung and recorded the baritone roles of some of the less-known 19th Century Italian operas.
Maria Spezia-Aldighieri (1828–1907) was an Italian operatic soprano who had an active international career from 1849 up into the 1870s.
 She excelled in the coloratura soprano repertoire and was particularly admired for her portrayals in the operas of Giuseppe Verdi.
 Her performance of Violetta in Verdi's "La traviata" at the Teatro San Benedetto in Venice in 1854 is credited with popularizing the opera after it had initially flopped at its premiere in 1853.
 She was married to baritone Gottardo Aldighieri and is the great grandmother of singer George Aaron.
Khovanshchina (Russian: Хованщина , "Hovánščina", sometimes rendered The Khovansky Affair; since the ending -ščina is pejorative) is an opera (subtitled a 'national music drama') in five acts by Modest Mussorgsky.
 The work was written between 1872 and 1880 in St. Petersburg, Russia.
 The composer wrote the libretto based on historical sources.
 The opera was unfinished and unperformed when the composer died in 1881.
Becoming Traviata is a 2012 French documentary film chronicling rehearsals of the Verdi opera "La traviata" at the Aix-en-Provence Festival.
 Directed by Philippe Béziat, the film focuses largely on stage director working with coloratura soprano Natalie Dessay.
 The film's French title is Traviata et nous ("Traviata and Us").
Reno Andreini (also spelled Remo) (born c. 1875-1880 in Florence - died after 1924) was an Italian operatic tenor who had an active international career from 1902-1924.
 A specialist in the Italian repertoire, he was frequently heard in the bel canto operas of Bellini, Donizetti, and Rossini, and in the verismo operas of Leoncavallo, Mascagni, and Puccini.
 He was notably the first singer to make a complete recording of the role of Rodolfo in Puccini's "La boheme" in 1917.
 He also recorded duets from "La traviata" with Maria Galvany and one duet from Massenet's "Manon" with Riccardo Tegani with the Gramophone Company.
The following is a partial discography of the many audio and video recordings of Giuseppe Verdi's opera, La traviata.
 Based on the novel "La dame aux Camélias" by Alexandre Dumas, fils, "La traviata" has been a staple of the operatic repertoire since its premiere on 6 March 1853 at the Teatro La Fenice in Venice.
Rolando Panerai (born 17 October 1924) is an Italian baritone, particularly associated with the Italian repertory.
 He was born in Campi Bisenzio, near Florence, Italy and studied with Frazzi in Florence and Armani and Giulia Tess in Milan.
 Panerai made his stage debut in 1947 in Naples at the Teatro di San Carlo as the pharaon in Rossini's "Mosè in Egitto".
 Other debuts, both in 1951, were as Simon Boccanegra in "Simon Boccanegra" in Bergamo and as Sharpless in "Madama Butterfly" at La Scala in Milan.
 He sang in many rarely performed Verdi operas on radio broadcast for RAI in 1951 (to commemorate the 50th anniversary of Verdi's death), such as "Giovanna d'Arco", "La battaglia di Legnano", and "Aroldo".
 Later roles included most of the great Verdi baritone roles, particularly the title character in "Rigoletto", The Count of Luna in "Il trovatore", Giorgio Germont in "La traviata", Marquis of Posa in "Don Carlos", Amonasro in "Aida".
La traviata (] , The Fallen Woman) is an opera in three acts by Giuseppe Verdi set to an Italian libretto by Francesco Maria Piave.
 It is based on "La Dame aux Camélias" (1852), a play adapted from the novel by Alexandre Dumas, fils.
 The opera was originally titled "Violetta", after the main character.
 It was first performed on 6 March 1853 at the La Fenice opera house in Venice.