The white grape variety (also Geisenheim 18-92, Rajhenstajner) is a new variety between Müller-Thurgau x(Madeleine Angevine x White Calabreser = Calabrisi Bianco), which was confirmed by DNA analyses published in 2012. The name is derived from the castle Reichenstein near Trechtingshausen in the Rheingau. The crossing of the father variety was carried out in 1939 by Dr. Heinrich Birk (1898-1973), the second crossing with the Müller-Thurgau was carried out by Dr. Helmut Becker (1927-1990) in Geisenheim (Rheingau). Plant variety protection was granted in 1978. The variety was a crossing partner in the new varieties Bolero, Ehrenbreitsteiner, Gamaret, Garanoir and Mara. The early to medium ripening vine is resistant to downy mildew and botrytis. It produces a floral, neutral tasting white wine with moderate acidity. There are stocks in Germany (100 ha), England (71 ha), Ireland, Japan, Canada (5 ha) and New Zealand (72 ha). In 2010, a total of 248 hectares of vineyard area were designated (statistics Kym Anderson).