Negrera
Encyclopedia
Negrera is a common word in Spanish (basically meaning 'black') that is used as a synonym for Juan García
Juan García (grape)
Juan García is a minor Spanish red grape variety. It is found mainly in the provinces of Zamora and Salamanca and in the autonomous region of Galicia. It is an authorized variety in the Arribes Denominación de Origen .-Synonyms:...

, Malbec
Malbec
Malbec is a purple grape variety used in making red wine. The grapes tend to have an inky dark color and robust tannins, and are long known as one of the six grapes allowed in the blend of red Bordeaux wine. The French plantations of Malbec are now found primarily in Cahors in the South West...

and possibly other red grape varieties.
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