La fedelt premiata (Fidelity Rewarded), Hob. XXVIII/10, is an opera in three acts by Joseph Haydn first performed at the Eszterháza (Fertőd, Hungary) on 25 February 1781 to celebrate the reopening of the court theatre after a fire. It was revised for a new version first performed in 1782.

Librettist Giambattista's Lorenzi (based on 'L'infedeltà fedele' by Giambattista's Lorenzi)
Date of composition 1780
Premiered 1781, February 25th in Fert?d, Hungary by Franz Joseph Haydn
Type Opera
Tonality G Major
Catalogue Hob. XXVIII:10
Instruments Voice (Mezzo-Soprano) - Celia, her real name being Fillide
Voice (Tenor) - Fileno, lover of Fillide
Voice (Soprano) - Amaranta, a vain and arrogant lady
Voice (Bass) - Count Perruchetto, a count of extravagant disposition
Voice (Soprano) - Nerina, a nymph, fickle in love, enamoured of Lindoro
Voice (Tenor) - Lindoro, Amaranta's brother
Voice (Bass) - Melibeo, High priest, in love with Amaranta
Voice (Soprano) - Diana
Orchestra
Arrangements Franz Joseph Haydn: La fedeltà premiata revised version in G major, Hob. XXVIII:10 "Fidelity Rewarded"
Autotranslations beta Joseph Haydn: La fedeltà premiata en sol majeur, Hob. XXVIII:10 "(Fidelity Rewarded)"
Franz Joseph Haydn: La fedeltà premiata in sol maggiore, Hob. XXVIII:10 "(Fidelity Rewarded)"
Joseph Haydn: La fedeltà premiata G-dur, Hob. XXVIII:10 "(Fidelity Rewarded)"