Mona Lisa, Op. 31 is a 1915 opera by the German composer Max von Schillings on a libretto by Beatrice von Dovsky. It was dedicated to the Philosophy Faculty of the University of Heidelberg, where the composer was awarded the title of professor.
In the spring of 1913, Beatrice von Dovsky presented the libretto to the composer, who prepared a piano sketch during the following summer. He completed the opera during his eight-month military duty as a medical soldier in France and Belgium. The subject was very topical at the time, because the painting by Leonardo da Vinci had been stolen from the Louvre in 1911, and rediscovered in Florence in 1913.
The opera was first performed on 26 September 1915 in the Hofoper in Stuttgart, with the composer conducting. In the same year it was also performed in Vienna (with Maria Jeritza in the title role), Berlin (Richard Strauss conducting the first two performances), Breslau, Hamburg and Budapest.
The North American premiere took place at the Metropolitan Opera in New York on 1 March 1923, Artur Bodanzky conducting, with Barbara Kemp, Michael Bohnen (both making their Met debut) and Curt Taucher in the principal roles.
Post war revivals at the Städtische Oper Berlin in 1953 and at the Badischen Staatstheater in Karlsruhe in 1983 were cut in length. It was revived complete at the Kiel Opera House in November 1994 and subsequently performed at the Wiener Volksoper in 1996.