The white grape variety is a new breed between Ezerjó x Bouvier. Synonyms are B 7 and Badacsony 7, which was crossed in Hungary in 1951 by the breeder Ferenc Király. With the same parents the new breedings Zengö and Zeusz were created. The early to medium-ripening, rather low-yielding vine is moderately sensitive to winter frost and relatively resistant to botrytis and both types of mildew. It produces fresh, fruity white wines with aromas of citrus and apples, and ageing potential. The variety is widespread in the Balaton (Lake Balaton), Eger, Etyek-Buda (here also for sparkling wine production) and Mátraalja areas. In Hungary it covers 639 hectares and in Russia 21 hectares. In 2016, a total of 660 hectares of vineyard area was declared (statistics Kym Anderson).