Constanze Mozart Conservatory of Brussels conserves several autograph documents from Constance Mozart, including letters to her son Franz Xaver Wolfgang Mozart, as well as a small illustrated "Album de Souvenirs", dated 1789 but covering the 1801–1823 period in which she collects memories, impressions and poems (ref. Jean-Lucien Hollenfeltz fund, B-Bc-FH-163). Notes Sources Constanze Mozart Maria Constanze Cäcilia Josepha Johanna Aloysia Mozart (née Weber) (5 January 1762 – 6 March 1842) was an Austrian woman who trained as a singer. She married twice, her first husband being Wolfgang Amadeus Mozart, and was later, jointly with her second husband Georg Nikolaus von Nissen, Mozart's
Wolfgang Amadeus Mozart his father was pursuing opportunities of employment for him in Salzburg. With the support of the local nobility, Mozart was offered a post as court organist and concertmaster. The annual salary was 450 florins, but he was reluctant to accept. By that time, relations between Grimm and Mozart had cooled, and Mozart moved out. After leaving Paris in September 1778 for Strasbourg, he lingered in Mannheim and Munich, still hoping to obtain an appointment outside Salzburg. In Munich, he again encountered Aloysia, now a very successful singer, but she was no longer interested in him. Mozart finally returned to Salzburg