The white grape variety is a new variety between Silvaner x MuscatBlanc. Synonyms are Geilweilerhof I-28-30, Morio Muscat and Morio Muskotaly. The cross was made in 1928 by Peter Morio (1887-1960) at the vine breeding institute Geilweilerhof in Siebeldingen-Pfalz. Plant variety protection was granted in 1956. DNA analyses carried out in 2012 revealed that the White Burgundy (Pinot Blanc) listed as the father variety in the breeding list was incorrect. There had always been doubts about the parentage, as the Muskateller aroma could not be explained. There is a special story about the clarification, because on his deathbed, so to speak, one of Morio's employees confessed to having deliberately pollinated the Silvaner not with pollen from Pinot Blanc, but from Muscat.