The Loew Sanatorium is located on Mariannengasse in Vienna, Austria. It was established by Heinrich Loew in 1859, and managed by his son Anton Loew beginning in 1874, eventually moving to the present building in 1882. Anton ran the business until 1907, when it was taken over by a private company and renamed the Weiner Sanatorium. In 1938 the Gestapo shut the doors on the Jewish run institution. During its years of service the sanatorium met the needs of the well-to-do in Vienna, and saw several noted persons enter its doors for treatment. On May 11, 1911, famed composer Gustav Mahler entered the sanatorium. He had become sick while working in New York, and after his last concert in February, was laid up for several weeks before being diagnosed with bacterial endocarditis. He and his wife Alma left New York in early April and sailed to Paris where he entered a hospital in Neuilly. After showing no signs of improvement he was admitted to the Loew Sanatorium on May 11, 1911. Treatments were ineffective, however, and he quickly spiralled down, passing away here on May 18. In January 1918 Gustav Klimt, noted artist and one of the founders of Vienna's Secessionist Movement, was admitted to the sanatorium after suffering a stroke. He shortly after developed pneumonia and died on February 6, 1918. Earlier, in 1902 he had been commissioned to paint a portrait of Gertrud Lowe, Anton's daughter, which recently sold for $39,000,000 at Sotheby's.