The white grape variety (also VB 91-26-1) is an interspecific new breed between Cabernet Sauvignon x unknown resistance partners. It is believed that it is a complex Cabernet Sauvignon x ( Sylvaner x ( Riesling x Vitis vinifera) x (JS 12417 x Chancellor )) as well as with the new varieties Cabertin and Pinotin is. Accordingly, genes would be of Vitis labrusca. Vitis lincecumii. Vitis rupestris and Vitis vinifera contain. The crossing of the hybrid was done in 1991 by the winery owner Valentin Blattner in Soyhières in the Swiss canton of Jura, then the selection in the Freytag Rebschule in Neustadt / Lachen-Speyerdorf in the Palatinate (Germany). The vine is resistant to frost. Botrytis and both mildews, but tends to millerandage (Millerandage). It produces aromatic, fragrant white wines with a taste that lies between Riesling and Sauvignon Blanc. The variety is in small quantities in the Switzerland, in Germany. Netherlands and in Austria grown. In 2010, however, no stocks were shown (Kym Anderson ).