Albarossa is a red Italian wine grape variety that was created in the Veneto wine region in 1938 by grape breeder Giovanni Dalmasso at the Istituto Sperimentale per la Viticoltura in Conegliano.
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The confusion stemmed from a synonym of Chatus, Nebbiolo di Dronero (Nebbiolo of Dronero, a small commune in the Piedmont wine region where Nebbiolo is grown but so apparently was Chatus).