La vera costanza

La vera costanza (True Constancy), Hob. 28/8, is an operatic dramma giocoso by Joseph Haydn. The Italian libretto was a shortened version of the one by Francesco Puttini set by Pasquale Anfossi for the opera of the same name given in Rome in 1776. The story explores the troubles of a sentimental heroine abandoned by a mad lover.