The house in which Wolfgang Amadeus Mozart was born on the January 27, 1756 is now one of the most frequently visited museums in the world. The Mozart family lived on the third floor of the "Hagenauer House" at Getreidegasse 9 for twenty-six years, from 1747 to 1773. The celebrated composer, Wolfgang Amadeus Mozart, was born here on January 27, 1756. The building is named after the merchant and toy dealer, Johann Lorenz Hagenauer (1712-1792), who owned the building and was a friend of the Mozart family. Visitors are conducted through the original Mozart rooms at Mozart's Birthplace containing historic instruments, documents, memorabilia and most of the portraits painted during his lifetime.