The red grape variety probably originates from Trentino-South Tyrol(Italy). Synonyms are Merlina, Merlina Valtelinese, Terodola, Teroldega, Teroldeghe, Teroldego Rotaliano, Teroldela, Teroldico, Teroldigo, Teroldigo Crni, Teroldila, Teroldola, Tiraldega, Tiraldola, Tirodola, Tiroldegho, Tiroldico and Tiroldigo. The ancestry (parentage) is unknown. It must not be confused with the varieties Negrara Trentina or Negrara Veronese (both also with synonym Terodola) despite seemingly indicating synonyms or morphological similarities. By presumably natural crossing between Teroldego x unknown partners are the varieties Lagrein and Marzemino. Teroldego is considered a leading variety in the European gene pool, from which many other varieties are descended. It was also a crossing partner of the new varieties Gosen, Iasma ECO, Rebo and Sennen.
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