The white grape variety is a new variety between (Seibel 7053 = Chancellor x Riesling) x (Seibel 7053 x Riesling). Synonyms and breeding numbers are Hybernal and GM 322-58, which contain genes from Vitis labrusca, Vitis lincecumii, Vitis rupestris and Vitis vinifera. The hybrid was crossed in 1944 by Heinrich Birk (1898-1973) in Geisenheim in Rheingau (Germany). Plant variety protection was granted in 1977.

The late-maturing, frost-hardy vine is resistant to both types of mildew and botrytis and is considered a PIWI variety. It produces fresh, fruity white wines that can have a subtle foxy flavour.
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