The red grape variety is a new variety from Blauer Portugieser x Blaufränkischwhich was last confirmed by DNA analyses carried out in 2013. Synonyms are Klosterneuburg 181-2 and Zweigeltrebe 181-2 and should not be confused with the similarly named varieties Blauburgunder (synonym for Pinot Noir) or Rotburger (synonym for Zweigelt). The crossing was made in 1923 by Dr. Fritz Zweigelt at the Klosterneuburger Weinbauinstitut (Lower Austria). The variety was a crossing partner in the new breeding Rathay. The early to moderately late ripening, high-yielding vine is resistant to botrytis, but susceptible to powdery mildew and stalk paralysis. It produces colour-intensive, deep-dark red wines with a velvety aroma similar to Blaufränkisch, which are often used as Teinturier (dyer's grape). The variety covers 750 hectares in Austria and 453 hectares in Hungary. There are smaller stocks in Germany with 2 hectares and in Canada with 18 hectares. In 2016, a total of 1,223 hectares of vineyard area were designated with a downward trend (Statistics Kym Anderson).