 After the dissolution of the manors in the mid-20th century this group ceased to exist.In addition to Germans, Croats and Hungarians, Burgenland used to have substantial Roma and Jewish populations, but these were wiped out by the Nazi regime.Before their deportation during 1938, the traditionally very religious Burgenland Jews were concentrated in the famous "Seven Communities" (Siebengemeinden/Sheva kehillot) in Eisenstadt, Mattersburg, Kittsee, Frauenkirchen, Kobersdorf, Lackenbach and Deutschkreutz, where they formed a substantial part of the population