... Archbishop Colloredo. When Mozart asked for a dismissal from service, Colloredo responded by firing both father and son. While Leopold eventually returned to service, Mozart traveled to various cities in search of a job. In Augsburg, Germany, Mozart met his cousin Maria Anna Thekla, with whom he began a notoriously salacious correspondence. Shortly after, he met Aloysia Weber in Mannheim, Germany. Unlike previous trips, Mozart journeyed to Paris only with his mother, and there with him she died. This caused Leopold to further turn against his increasingly independently-minded son. Still, Mozart returned home and again secured a position with Colloredo. In 1780, he traveled to Munich to compose his first great opera, Idomeneo, and was again flushed with success. When Colloredo called Mozart from Munich to Vienna, to celebrate the coronation of Joseph II, Mozart found himself placed among butlers and cooks, and asked to again be let from service. Mozart was fired, with, literally, a kick in the behind. In Vienna, he taught pupils, performed and composed for patrons, and staged concerts. It was not until 1787 that he secured a permanent salary writing music for balls. In 1782, Mozart married Constanze, the younger sister of Aloysia. The couple would have six children together, although only two survived through childhood. It was also at this time that Mozart wrote most fruitfully, beginning with the successful 1782 singspiel (a form in which all dialog is spoken instead of sung) The Abduction from the Seraglio. Between 1782 and 1786, he wrote 15 piano concerti, exhibiting his full range of orchestral writing and a passion for the piano-forte, an instrum