The white grape variety is a new breed between Riesling x Madeleine Royale. Some synonyms point to the parenthood of Riesling x Sylvaner, which has long been wrongly assumed. Within the European Union, those names which refer to it, such as Riesling-Sylvaner, are no longer permitted. The most important are Müller-Thurgau Rebe, Müller Thurgau Weiß(Germany); Müller-Thurgau Blanc (France); Uva di Lauria (Italy); Riesling-Silvaner, Riesling x Silvaner, Riesling-Sylvaner (New Zealand, Switzerland); Rivaner (Austria, Luxembourg), Rizlingszilvani (Hungary), Rizvanac, Rizvanac Bijeli (Croatia); Rizanec, Rizvanec (Slovenia); Muller Thurgau White (USA). Due to its characteristics, it is a popular crossbreeding partner for new varieties. These are among others Albalonga, Arnsburger, Bacchus, Diana (1), Faberrebe, Floriánka, Fontanara, Gloria, Gold Riesling (2), Grando, Gutenborner, Helios (1), Hildegardistraube, Kanzler, Mariensteiner, Markant, Medea, Mília, Montagna, Muscabona, Muscat Bleu, Optima, Ortega, Pálava, Perle, Rabaner, Regner, Reichensteiner, Schantlrebe, Septimer, Tamara, Thekla, Thurling and Würzer. Two mutations are Findling (formerly ripening) and Red Müller-Thurgau (berry colour).