The museum of the Diocese in Eisenstadt has been on the premises of the Franciscan monastery since 1980. Its collection of ecclesiastical art of the region (sculptures, paintings, paraments, i.e. clothes worn in religious services, and devices pertaining to the liturgy, objects of people´s piety and religious graphics) is unique in Burgenland.
https://eisenstadt-leithaland.at/diocesan-museum.html