The white grape variety is a new breed between Cape Riesling(Crouchen) x Ugni Blanc(Trebbiano Toscano). The interim assumption with Sémillon as mother variety has been proven wrong by DNA analyses carried out in 2007. The cross was made in 1964 by Professor Christiaan Johannes Orffer (1926-2008) at the University of Stellenbosch in South Afri... Found on https://glossary.wein.plus/nouvelle