The first act of this opera sees an Italian tenor perform the aria "Di rigori armato" for one of the central characters until he is interrupted by another character's heated argument with an attorney 
The first act of this opera sees an Italian tenor perform the aria "Di rigori armato" for one of the central characters until he is interrupted by another character's heated argument with an attorney over wedding gift etiquette. Three central characters sing the third act trio "Hab' mir's gelobt" in this opera, which opens with one character hiding from the chocolate-bearing servant Mohammed. A male character courts the antagonist of this opera in the guise of the servant girl Mariandel. After helping trick Baron Ochs into releasing his engagement, the aging Marschallin allows Octavian to pursue the younger Sophie. For 10 points, name this opera in which Octavian falls in love with Sophie after ritually presenting her with the title flower on behalf of Baron Ochs, a comic opera by Richard Strauss.
The first act of this opera sees an Italian tenor perform the aria "Di rigori armato" for one of the central characters until he is interrupted by another character's heated argument with an attorney over wedding gift etiquette.
Der Rosenkavalier [or The Knight of the Rose]