Count Giacomo Durazzo (1717-1794) was an Italian diplomat and man of the theatre. He was born into one of the most important aristocratic families in Genoa. In 1749, he became ambassador to the court in Vienna where he was appointed director of the imperial theatres in the city in 1754. He is most famous for working with the composer Christoph Willibald Gluck on reforming Italian opera. This page is about negotiations; for the board game, see Diplomacy (game). ... The Ancient Port of Genoa. ... Inhabitants according to official census figures: 1800 to 2005 Vienna in 1858 Vienna (German: Wien ) is the capital of Austria, and also one of the nine States of Austria. ... Gluck, detail of a portrait by Joseph Duplessis, dated 1775 (Kunsthistorisches Museum, Vienna) Christoph Willibald (von) Gluck (July 2, 1714 – November 15, 1787) was a German composer. ...