The Encyclopedia of Classic Opera · Thursday, July 2, 2026
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Opera in the Repertoire · Classical

Il re pastore

Music by Wolfgang Amadeus Mozart · libretto by Pietro Metastasio · premiered 1775

Il re pastore (The Shepherd King) is an opera, K. 208, written by Wolfgang Amadeus Mozart to an Italian libretto by Pietro Metastasio, edited by Giambattista Varesco. It is an opera seria within the pastoral genre. The opera was first performed on 23 April 1775 in Salzburg in the Rittersaal (knight's hall) of the Residenz-Theater in the palace of the Archbishop Count Hieronymus von Colloredo. In 1775 the opera was commissioned for a visit by the Archduke Maximilian Francis of Austria, the youngest son of Empress Maria Theresa, to Salzburg. Mozart spent six weeks working on the opera. It consists of two acts and runs for approximately 107 minutes. Metastasio wrote the libretto in 1751, basing it on a work by Torquato Tasso called Aminta. The libretto was picked up when Mozart (just 19 at the time) and his father saw a performance of it set to music composed by Felice Giardini – Mozart's version, however was two acts rather than Giardini's three, and has a few substantial changes. Each act lasts for around an hour in performance. The Salzburg court chaplain Varesco was largely responsible for this editing of Metastasio's libretto. It is often referred to not as an opera, but as a serenata, a type of dramatic cantata. The appearance of a quartet of lovers (Aminta and Elisa, Agenore and Tamiri) of somewhat dubious fidelity automatically puts a modern audience in mind of the later Così fan tutte. The principal psychological theme of the opera is, however, the demands of love against the demands of kingship, as Aminta, the shepherd-king, tussles with his conscience, and in this Il re pastore is closer in theme to Idomeneo than any other of Mozart's operas. Indeed, Idomeneo was the next completed opera that Mozart wrote after Il re pastore, after his six-year-long break from the stage. Furthermore, the theme of qualities for kingship appears in another opera, La clemenza di Tito, his last one.

For readers approaching Il re pastore for the first time, the entry below sets out the dramatic situation, the principal musical highlights, and the work's place in performance history. Detailed scholarly editions of the score and libretto remain the indispensable companions to any serious study of the opera.

Background & Context

Il re pastore belongs to the standard operatic repertoire and is documented in the OperaPedia archive as a complete editorial entry. Composed by Wolfgang Amadeus Mozart to a libretto by Pietro Metastasio, the work is preserved in the canon of the disciplined Classical idiom that married theatrical immediacy to formal symmetry. It received its first performance in 1775.

Like many works of the Classical period, Il re pastore is built around the alternation of solo aria, ensemble, and orchestral commentary characteristic of the form. Its formal designation as Opera seria situates the work within a recognisable subgenre, with the dramaturgical and musical conventions of that subgenre informing the architecture of every scene.

Critical reception of Il re pastore has shifted with the broader currents of operatic taste. Where earlier audiences may have valued the immediate theatrical effect of a star turn, modern listeners and conductors increasingly attend to the work's harmonic logic, its handling of orchestral colour, and the precision of its text-setting.

Singers approaching the principal roles will find the writing characteristic of Wolfgang Amadeus Mozart's mature manner: long phrases that demand both a flexible technique and a sustained legato line, with ensemble passages that reward careful attention to ensemble blend and pace.

Synopsis

The dramatic action of Il re pastore unfolds across multiple acts, set primarily in scenes that combine ensemble writing with extended solo arias for the principal voices. The libretto by Pietro Metastasio draws on dramatic conventions familiar to audiences of the Classical era, and the score by Wolfgang Amadeus Mozart is structured around a sequence of recitatives, arias, and choral interventions typical of the form.

Like much of the standard operatic repertoire, the work blends private emotional crisis with public spectacle. The opening act establishes the central characters and the conflict that will drive the drama; the middle of the opera develops that conflict through arias of recognition, ensembles of confrontation, and one or more set-pieces that allow the principal singers to demonstrate the full range of their vocal art. The closing act resolves the action, often through a large ensemble that draws together every voice on stage.

Critical assessments from later generations consistently emphasise the score's harmonic invention and its sensitivity to the rhythms of the original text. Productions in the modern era have approached the work in a variety of stylistic registers, from period-instrument revivals attentive to seventeenth- and eighteenth-century performance practice to contemporary stagings that relocate the action to the present day in the search for fresh dramatic resonance.

Notable Arias & Musical Highlights

Among the musical episodes most cherished by audiences of Il re pastore are the principal solo arias, in which the voice steps forward from the orchestral fabric to deliver the central emotional argument of each act. The vocal writing, characteristic of Wolfgang Amadeus Mozart's mature manner, calls for both flexible coloratura and sustained lyrical line. The great interpreters of the role have always been those who can find the shape of the long phrase without sacrificing dramatic urgency.

The orchestral preludes, dance episodes, and act-closing ensembles also deserve mention. Conductors approaching the score for the first time often note how carefully the composer balances the practical needs of the singers against the demands of the dramatic situation: tempi must breathe enough for the words to land, but never slacken so far as to lose the architectural arc of the act.

For singers preparing roles in Il re pastore, the standard editions of the score remain the essential reference. Voice teachers and coaches typically pair the principal arias with carefully chosen technical exercises that address the specific demands of Wolfgang Amadeus Mozart's vocal writing: the breath control required for the long-spun cantilena, the agility needed for ornamented passages, and the dramatic concentration that makes the recitatives land.

Premiere & Production History

Il re pastore received its first performance in 1775. Contemporary accounts describe an audience response shaped as much by the fashions of the day as by the merits of the score itself; subsequent revivals, however, established the work's place in the repertory.

The twentieth century brought a sequence of important revivals, often led by conductors and stage directors associated with the broader rediscovery of Classical opera. In recent decades, the work has been mounted by major houses across Europe and North America, with notable studio recordings and house premieres documenting changing performance practice. Editors and musicologists continue to refine the critical edition of the score, restoring passages cut in earlier theatrical traditions and clarifying the composer's intentions in matters of orchestration and tempo.

An Intermission

About the Composer

Wolfgang Amadeus Mozart is the composer of record for this opera.

Read the full biography of Wolfgang Amadeus Mozart →

Other Operas by Wolfgang Amadeus Mozart

Related Operas in the Catalogue

Listeners drawn to Il re pastore may wish to explore the following entries from the same era or the same operatic tradition:

Editorial Note

This entry is part of OperaPedia's continuing project to document the canonical operatic literature. Sources for this article include the Wikidata structured-data layer for opera works (Q1344) and the corresponding English Wikipedia articles, both reproduced here under the editorial conventions of an encyclopaedia. Where our entry diverges from those sources, the difference reflects editorial judgment rather than disagreement with the underlying scholarship.