Watch 123Movies. Emmerich Kálmán’s Csárdásfürstin (The Gypsy Princess) was once one of the most popular works in the operetta repertoire, but has appeared only sporadically on the operatic stage in recent decades. The plot tells the story of a love triangle involving Sylva Varescu, a spirited variété artist of humble origin, and the aristocrat Edwin, who is already promised to another woman. The obstacle to their love is their difference in social status.