sentences:  In 1805, 1809, and 1810, French troops were quartered there, following successful invasions of Austria by Napoleon.Soviet troops occupied the town near the end of World War II, in 1945.In 1517, a Dr. Enzianer, who was Rector of the University of Vienna and court physician, established a bathing establishment, making use of the waters of a slightly sulfurous spring, temperature 22.5 degrees C. This spa remained popular for about 250 years.