The red grape variety (also VB 91-26-5) is an interspecific new variety between Cabernet Sauvignon x Regent. It contains genes from Vitis amurensis and Vitis vinifera. The hybrid was crossed in 1991 by the vineyard owner Valentin Blattner in Soyhières in the canton of Jura in Switzerland.

The early-ripening vine is susceptible to powdery mildew (oidium), but resistant to downy mildew and frost. It produces fruity red wines that are similar to Cabernet Sauvignon.
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