text: Paris As his operas were not appreciated by Frederick II of Prussia, Gluck began to focus on France. Under the patronage of Marie Antoinette, who had married the future French King Louis XVI in 1770, Gluck signed a contract for six stage works with the management of the Paris Opéra. He began with Iphigénie en Aulide. The premiere on 19 April 1774 sparked a huge controversy, almost a war, such as had not been seen in the city since the Querelle des Bouffons. Gluck's opponents brought the leading Italian composer Niccolò Piccinni to Paris to demonstrate the superiority of Neapolitan opera, and the "whole town" engaged in an argument between "Gluckists" and "Piccinnists". The composers themselves took no part in the polemics, but when Piccinni was asked to set the libretto to Roland, on which Gluck was also known to be working, Gluck destroyed everything he had written for that opera up to that point.
  On 2 August 1774 the French version of Orfeo ed Euridice was performed, more Rameau-like, with the title role transposed from the castrato to the tenor voice. This time Gluck's work was better received by the Parisian public. In the same year, Gluck returned to Vienna, where he was appointed composer to the imperial court (18 October 1774) after 20 years serving as Kapellmeister. Over the next few years, the now internationally famous composer would travel back and forth between Paris and Vienna. He became friends with the poet Klopstock in Karlsruhe. On 23 April 1776, the French version of Alceste was given.