The red grape variety is an interspecific new variety between Fratava x Merlan. The original name was Kaberon for a long time; synonyms are Na and L-3-10-34, and it contains genes of Vitis aestivalis, Vitis berlandieri, Vitis labrusca, Vitis rupestris and Vitis vinifera. The crossing of the hybrids was done in the Czech Republic by a team led by Vilém Kraus (1924-2013). The plant variety protection was granted in 2010. With the same parents, the new varieties Cerason, Kofranka, Laurot and Marlen have also been created. The late ripening vine is quite resistant to botrytis and both types of mildew. It produces ruby-coloured, tannic and acidic red wines with aromas of spices and sour cherries. The variety is cultivated in Moravia, but in 2010 no stock has yet been reported (statistics Kym Anderson).