Less than an hour’s drive east of Vienna, in the low-lying Austrian province of the Burgenland, are a series of towns of special interest to Jewish travellers. These are the once-famous “Siebengemeinden,” the seven noteworthy Jewish communities of Eisenstadt, Mattersdorf, Deutschkreutz, Lackenbach, Kobersdorf, Frauenkirchen and Kittsee. The largest and most significant is Eisenstadt, the provincial…