Niederschönenfeld is a municipality in the district of Donau-Ries in Bavaria in Germany.Mayors1978 – 1996: Johann Höringer1996 – 2002: Manfred Rümmer since 2002: Peter MahlPenal institution NiederschönfeldThe prison exists since 1862. It is the biggest employer in Niederschönau. There is room for 261 prisoners.Famous prisoners: Hans Beimler (1921–1923) Erich Mühsam (1920–1924) Ernst Toller (1920–1924)