The white grape variety (also FR 177-68) is a complex new breeding between Riesling x FR 589-54 (by the way, the same parents also gave rise to the Austrian new breeding Donauriesling ). It contains genes from Vitis aestivalis, Vitis cinerea, Vitis rupestris and Vitis vinifera. The hybrid was crossed in 1968 by Dr. Johannes Zimmermann (1907-1998) at the State Viticultural Institute in Freiburg (Baden-Württemberg). The name is a tribute to the former director of the institute and breeder. The medium-early ripening vine is resistant to both types of mildew and is therefore considered a PIWI variety. It produces fruity white wines similar to Riesling. In Germany, it is cultivated on 124 hectares (D-STATIS, 2018). Small populations also exist in Austria, as well as on 11 hectares in Switzerland (Kym Anderson, 2016).