The white grape variety is a complex new breeding between Merzling x GM 6493(Zarya Severa x Muscat Ottonel). Synonyms or the breeding numbers are Freiburg 240-75 and FR 240-75, respectively, and include genes of Vitis amurensis, Vitis lincecumii, Vitis rupestris and Vitis vinifera. The crossing of the hybrids was done in 1975 by Norbert Becker (1937-2012) at the State Viticulture Institute Freiburg (Baden-Württemberg). The plant variety protection was granted in 2001. The Solaris variety or its parent plant population was a crossing partner in the six fungus-resistant PIWI new varieties Cabernet Cantor, Cabernet Carol, Cabernet Cortis, Galante, Monarch and Muscaris.