The red grape variety is an interspecific new breeding between Cabernet Sauvignon x unknown resistance partners. Synonyms are Cabernet Jura 5-02, Valentin Blattner 5-02 and VB 5-02, with genes from Vitis amurensis and Vitis vinifera. The hybrid was crossed in 1991 by the breeder and vineyard owner Valentin Blattner in Soyhières in the Swiss canton of Jura, the selection was made at the Freytag nursery in Neustadt/Lachen-Speyerdorf(Pfalz, Germany). The medium ripening frost hardy vine is resistant to both mildew and botrytis, which is why it is considered a PIWI variety. It produces colour-intensive, aromatic red wines with a subtle muscatel tone. In 2016, 27 hectares were designated in Switzerland (Kym Anderson); there are also small populations in Germany and Austria.