Claim: Luisa Miller is an Italian opera from 1849 based on the play Kabale und Liebe.
Evidence: Luisa Miller is an opera in three acts by Giuseppe Verdi to an Italian libretto by Salvadore Cammarano, based on the play Kabale und Liebe (Intrigue and Love) by the German dramatist Friedrich von Schiller. The first performance was given on 8 December 1849.