The white grape (also Freiburg 339) is a new breed between Traminer ( Gewurztraminer x Riesling What was published in 2013 DNA analysis was confirmed. The crossing took place in 1939 by Dr. med. John carpenter (1907-1998) at the State Wine Institute Freiburg (Baden-Württemberg). The name was given to the eponymous nobility, which had their seat on the castle Zähringen in Freiburg. The variety has not gained importance. She was crossing partner in the new breed Souvignier Gris, No stocks were reported in 2010 (Kym Anderson ).
Pictures: Ursula Bruehl, Doris Schneider, Julius Kühn Institute (JKI)