Biatorbágy (German: Wiehall-Kleinturwall) is a town in Pest County, Budapest metropolitan area, Hungary. It has a population of 10,720 (2007).
On 13 September 1931 a demented man (Szilveszter Matuska) blasted the train to Vienna on the viaduct of Biatorbágy. Prime minister Gyula Károlyi inducted martial law, and executed two illegal communist representatives.(Wikipedia)