The red grape variety originates from Italy. Synonyms are Corbera, Crova, Crova di Bobbio, Crova di Voghera and Crova Nera. Due to the similarities in names and apparently suggestive synonyms, it has often been confused with the two varieties Corvina Veronese and Lambrusca di Alessandria (synonym Corva). The old variety used to be widespread in the province of Brescia in Lombardy. Today it is practically extinct. The Pusterla winery cultivates the "Vigneto Pusterla" vineyard at the foot of the castle in the middle of the city of Brescia, where autochthonous varieties, some of which are very rare, are grown on four hectares and from which the special IGT cuvée Ronchi di Brescia is pressed. Among them are the varieties Groppello Gentile, Invernenga, Maiolina, Marzemino, Schiava Grossa and Corva. The Slow Food association defined this vineyard as a cultural heritage site in 2007. No stocks were recorded in 2016 (Kym Anderson statistics).
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Markus J. Eser
Weinakademiker und Herausgeber „Der Weinkalender“