The white grape variety is a new variety between Siegerrebe x Müller-Thurgau, which was confirmed by DNA analyses published in 2012. The crossbreeding was carried out in 1948 by the breeder Dr. Hans Breider (1908-2000) at the Bavarian State Institute for Viticulture, Fruit and Horticulture in Würzburg. However, the variety has not become established; no stocks were recorded in Germany in 2009. The three new varieties Ortega, Tamara and Thekla were created with the same parents.
Pictures: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)