https://en.wikipedia.org/wiki/Ringtheater_fire
The Ringtheater fire occurred on 8 December 1881, in the popular Viennese Ringtheater, named after the road it was located at, the Schottenring. Before the fire, the privately run theater, with a capacity of about 1700 visitors, suffered from financial problems. Officially, 384 people perished in the fire, though there are higher estimates. For example, the Prussian-born author and encyclopedian Ludwig Julius Eisenberg (1858–1910) claims that up to one thousand could have been killed.