After the close of the opera, Mozart wrote a symphony (112 K.) and a divertimento (113 K.), probably for a concert, but at all events to order. During this stay in Milan a contract was entered into with the theatre of S. Benedetto in Venice, by which Wolfgang was commissioned to write the second opera of the Carnival of 1773. How this was possible, since the contract stipulates for residence in Venice at the same time as it had been already promised in Milan, it is not easy to see, unless some indulgence on the part of the Venetian impresario was looked for, perhaps even promised.[69] The contract, however, was never fulfilled; Nau-mann became Mozart's substitute, arriving in Vienna just in time to undertake the opera. He produced his "Soliman" with very remarkable success.[70] The return of the Mozarts to Salzburg was delayed until the middle of December, on the 30th of which month Wolfgang composed a symphony (114 K,), and was soon after seized with severe illness.[71] Their arrival at home coincided with the death of Archbishop Sigismund, which took place after a lingering illness on December 16,1771. His successor was elected on March 14, 1772, in the person of Hieronymus Joseph Franz v. Paula, Count of Colloredo, Bishop of Gurk; to the universal surprise and grief of the populace, who had little prosperity to hope for under his rule.[72] An opera was required to form {"IL SOGNO DI SCIPIONE"--SALZBURG, 1772.} (139) part of the festivities accompanying his installation, and this Wolfgang was commissioned to compose.[73] The subject chosen was "Il Sogno di Scipione" (126 K.), an allegorical _azione teatrale_, by Metastasio, which had been performed with music by Predieri on the birthday of the Empress Elizabeth, October 1, 1735. It was written with reference to the unfortunate military events in Italy, and stress was laid on the bravery and steadfastness of a great general, even in defeat. How far this subject was applicable to the circumstances of Bishop Hieronymus does not seem to have been inquired; even the words of the Licenza were left unaltered, except that the name of Girolamo was substituted for Carlo. It is amusing to note that Mozart composing from his Metastasio, writes the words under his score: "Ma Scipio esalta il labbro e _Carlo_ il cuore," then effaces the name and writes _Girolamo_. We do not know how far indifference towards the person of the new Archbishop is responsible for the fact that this opera betrays more of the character of an occasional piece written to order than any other composition by Mozart. It was probably produced in the beginning of May, 1772.[74]