The white grape variety (also Dalmasso XIII-11) is according to the breeding list entry a new variety between Hárslevelü x Malvasia Trevisana (Malvasia Trevigiana = Malvasia Bianca Lunga). The sire variety was accepted ex VIVC catalogue because "Trevigiana" means "the Trevisan". However, according to DNA analyses neither Hárslevelü nor Malvasia Bianca Lunga are in question. The actual parenthood is therefore unknown. The cross was made at the Istituto Sperimentale per la Viticoltura in Conegliano (Veneto) in 1936 by the Italian breeder Giovanni Dalmasso (1886-1974). In 2016 no stock was recorded (statistics Kym Anderson).