Beethoven's Pasqualatihais is located on Mölker Bastei in Vienna, Austria. It was here the famed composer lived, off and on, from 1804 to 1815. The house is named after it's owner, and friend of Beethoven, Baron Johann Baptist von Pasqualati. It is known that Beethoven lived here during winter months from 1804 to 1808 and 1810 to 1814, and sporadically in between, spending his summers in the north of Vienna. It isn't known with exact certainty what rooms he lived in, although references are made to several in his correspondence. The museum is located on the fourth floor. Since Beethoven may have had as many as 80 residences during his time in Vienna it is noteworthy that he spent as much time here as he did. Throughout his years here, he worked on Symphony No. 4, Symphony No. 5, Symphony No. 7, Symphony No. 8, and his opera Fidelio. Beethoven also composed one of his most famous pieces here, dedicated to Therese von Malfatti, Für Elise.