re he had lived as a twelve-year old. A few months later, he lived at Wipplingerstrasse 14, at Kohlmarkt 7, and at Judenplatz 3-4. In 1784, Mozart moved to one of the most representative houses in Vienna called, "Trattnerhof." At the ceremonial hall of the Trattnerhof house, Mozart's piano concertos K449, 450, and 451 were premiered. Mozart's only home in Vienna preserved until today is the "Figarohaus," which is located behind St. Stephen's Cathedral. Mozart lived there from October 1784 until April 1787. It's where he played his most mature compositions. Joseph Haydn paid visited here; Mozart dedicated six string quartets to him. Mozart Becomes a Freemason In December 1784, Mozart became an "apprentice" in the Masonic lodge called, "Zur Wohltatigkeit." In this lodge, he became a "visiting brother." After a month, he became a "journeyman." His "Masonic compositions" are his contributions to certain Masonic celebrations. From January 1786, Mozart was a member of the lodge called, "Zur Neugekronten Hoffnung." The Death of a Genius: Mozart was an extremely talented man who died at a very young age. Many different rumors were circulated about his death. Many of people even accused his long time rival Aontonio Salieri of murder. These allegations were not pursued, but to this day, no one knows the cause of his death. Some scientists say that he had Typhoid fever, others claim that "rheumatic inflammatory fever" was the cause of his death; but the secret of his death will never are known. The key to Mozart's death was buried with him on December 5th, 1791, in an unmarked grave, as was customary for those of his social standing, in Vienna. Maria Anna "Nannerl" Mozart: Born: Salzburg, July 30/31 1751 Died: Salzburg, October 29, 1829 Maria was a gifted musician whose abilities were quickly overshadowed by her younger brother, Mozart. At first, Maria was seen as the musical equivalent of Wolfgang, half of a sister-brother act that toured the cap...