Trademark of the "Consorzio del Marchio Storico Chianti Classico" (Consortium of the Historical Brand Chianti Classico), founded in 1924. At that time there were 33 members, which has grown to over 600 today. They produce about 80% of the Chianti Classico. The "Black Rooster" is the historical symbol of the "Lega militare del Chianti", a kind of military alliance of the Chianti, which ruled this territory from the 14th century onwards. According to legend, a black rooster also played an important role in defining the geographical boundaries of the Chianti area. The Medici court painter Giorgio Vasari (1511-1574) painted the black rooster as an allegory of the Chianti Classico on the ceiling of the Salone dei Cinquecento in the Florentine Palazzo Vecchio.
In the past, the Chianti Consortium used to bear the name "Consorzio del Gallo Nero", but the Californian wine multinational Gallo claimed the name "Gallo Nero" for itself. After a long legal dispute, it was decided in 2005 that the name "Gallo Nero" and the black cock in combination may no longer be used outside Italy by the Consorzio del Gallo Nero. Therefore the change had to be made to the above mentioned designation. The second association "Vino Chianti Classico" reached an agreement with the Consorzio in 2005 after 18 years of dispute. A joint marketing concept was developed. Now all wines from the Chianti Classico wine region carry the Gallo-nero symbol next to the pink DOCG band. President of the Chianti Classico Consortium since the end of 2006 is Marco Pallanti of Castello di Ama.