Ralph Benatzky (1884 –1957), born in Moravské Budejovice as Rudolf Josef František Benatzki, was an Austrian composer of Czech origin (when Benatzky was born Czechia was part of the Austrian empire, Benatzky mostly worked in Vienna). He composed operas and operettas, such as Casanova (1928), Die drei Musketiere (1929), Im weißen Rössl (1930), and Meine Schwester und ich (1930).