Lo sposo deluso, ossia La rivalit di tre donne per un solo amante (The Deluded Bridegroom, or The Rivalry of Three Women for One Lover) is a two-act opera buffa, K. 430, composed by Wolfgang Amadeus Mozart between 1783 and 1784. However, the opera was never completed and only a 20-minute fragment from act 1 exists.

Librettist Unknown, sometimes attributed to Lorenzo Da Ponte
Date of composition 1784 (1783-1784)
First published 1855 – Offenbach: André
Type Opera Buffa
Catalogue KV 430
Spoken language Italian
Instruments Chorus/Choir
Orchestra
Voice (Bass) - Bocconio Papparelli, a rich but stupid man, betrothed to Eugenia
Voice (Soprano) - Eugenia, a young Roman noblewoman, betrothed to Papparelli but in love with Don Asdrubale
Voice (Tenor) - Don Asdrubale, a Tuscan army officer
Voice (Soprano) - Bettina, Papparelli's vain young niece, also in love with Don Asdrubale
Voice (Tenor) - Pulcherio, the misogynist friend of Papparelli
Voice (Bass) - Gervasio, Eugenia's tutor, in love with Metilde
Voice (Soprano) - Metilde, a virtuoso singer and dancer and friend of Bettina, also in love with Don Asdrubale
Autotranslations beta Wolfgang Amadeus Mozart: Lo sposo deluso, KV 430 "La rivalità di tre Donne per un solo Amante (The Deluded Bridegroom, or The Rivalry of Three Women for One Lover)"
Wolfgang Amadeus Mozart: Lo sposo deluso, KV 430 "La rivalità di tre Donne per un solo Amante (The Deluded Bridegroom, or The Rivalry of Three Women for One Lover)"
Wolfgang Amadeus Mozart: Lo sposo deluso, KV 430 "La rivalità di tre Donne per un solo Amante (The Deluded Bridegroom, or The Rivalry of Three Women for One Lover)"