The red grape variety (also VB 91-26-19) is an interspecific new variety; it was crossed in 1991 by the grower and vineyard owner Valentin Blattner in Soyhières in the Swiss canton of Jura, and then selected at vine nursery Freytag in Neustadt/Lachen-Speyerdorf in the Palatinate(Germany).

For a long time, the father variety was unknown and was only indicated as a fungus-resistant variety. According to DNA analyses carried out in 2021, it is a cross between Cabernet Sauvignon x Regent (based on 24 DNA markers). It contains genes from Vitis labrusca, Vitis lincecumii, Vitis rupestris and Vitis vinifera.
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Egon Mark
Diplom-Sommelier, Weinakademiker und Weinberater, Volders (Österreich)