This work, possibly commissioned by Prince-Bishop Sigismund  Christoph  von  Schrattenbach ,  was assigned to three  Salzburg  composers: W. A. Mozart (part 1), Michael Haydn (part 2), and Anton  Cajetan   Adlgasser  (part 3). Only the manuscript of part 1 has survived.  Here Mozart drew heavily on the  Salzburg  tradition of church music and school dramas,  perhaps taking Johann Ernst  Eberlin  and even his  father Leopold as his models.<br>
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 The first performance took place in the Knights’ Hall of the prince’s palace on 12 March 1767. The libretto was supplied by Ignaz  Anton Weiser (1701–1785), town councillor and mayor of Salzburg .<br>
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 Mozart wrote out many of the appoggiaturas in this early work, thereby providing a useful guide to the vocal practices of his day. Aria no. 2 has come down to us with an  instructive passage  in which the vocal part is ornamented in the hand of Leopold Mozart.<br>
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 The piano reduction, by K.-H. Müller , was prepared on the basis of the New Mozart Edition.  The piano part is uncluttered and easy-to-play.<br>