(Ger., Nikolsburg), town in Moravia, in today’s Czech Republic. Mikulov was the largest and most important Jewish community in Moravia until the middle of the nineteenth century, and seat of the Moravian chief rabbinate from the mid-sixteenth century until 1851. The oldest written evidence of Jews in Mikulov dates from 1369, but the Jewish community was probably founded by Jews expelled from Vienna and Lower Austria in 1420. Additional Jews arrived after the expulsions from Brno and Znojmo in 1454.