Johann Franz Greipel (attr.): Premiere of the opera *Il parnasso confuso*by Christoph Willibald Gluck, performed in front of

Performing on the stage are the four archduchesses Maria Josepha, Maria Elisabeth, Maria Karolina and Maria Amalia. Seated in the first row are Emperor Franz I Stephan of Lorraine, Empress Maria Theresa and Crown Prince Joseph.