Claim: Il borgomastro di Saardam is an 1827 melodramma giocoso and included in the casts are Celestino Salvatori, Carolina Ungher  (Austro-Hungarian contralto) and Giovanni Pace.
Evidence: Il borgomastro di Saardam (The mayor of Saardam) is an 1827 melodramma giocoso (opera buffa) in two acts by Gaetano Donizetti. Celestino Salvatori Carolina Ungher Giovanni Pace Caroline Unger (sometimes "Ungher"; 28 October 1803 – 23 March 1877) was an Austro-Hungarian contralto, alternatively known as Karoline, Carolina, and Carlotta. Roles, voice types, premiere cast