The white grape variety originates from Italy. The name is probably derived from the hard-skinned berries (duro = hard). Synonyms are Cagnina, Caina, Duracino, Durella Bianca, Durella Gentile, Durello, Durelo and Rabiosa.

According to an unverifiable hypothesis, it (like the French variety Duras) is a descendant of the ancient grape variety Duracina mentioned by the Roman authors Cato (234-149 BC) and Columella (1st century AD). The variety was first mentioned in 1825 by the naturalist Guiseppe Acerbi...
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Andreas Essl
Autor, Modena