Is quoted by Mariti (1797) as typical of Pisa hills. In the Bullettino ampelografico, Fasc. XIV  (Ministero d’Agricoltura, Industria e Commercio, 1881) is reported Bonamico as synonyms of Giacomino, pink Grape, Canaiolo romano rosso cupo, among the varieties cultivated in different municipalities of the province of Florence, while in the Fasc. XVI (Ministero d’Agricoltura, Industria e Commercio, 1883) of the same Bulletin, Bonamico is quoted by Di Rovasenda (1877) and also appears among the varieties described by the ampelographic Commission of Siena province. At the beginning of the twentieth century the Vannuccini (Viala and Vermorel, 1905) report an accurate description, claiming that the ‘Buonamico’ is a vine native to the province of Pisa (locally referred also as Durace, Giacomino or Uva di Palaia) or Lucca, from where it then spread in the rest of Tuscany. The Vigiani (1919) reports the presence of this variety in the provinces of Siena and Florence and Marzotto (1926) report the presence of Bonamico in different provinces of Tuscany. Even Musiani (1932) describes it accurately and stated that it is only rarely found in the vineyards of Siena hills. A detailed description was made by Breviglieri and Messerini (1960). In the area of Morellino di Scansano is also known as "black French" (Ferroni et al., 1999), while in the area of Montecucco is called "Knight". It is in the catalogue of Autochthonous genetic resources of Tuscany (Scalabrelli et al., 2005).

Distribution

Pisa province is the main area of cultivation. Until the late '70 of last century it was still fairly widespread, while currently is found only sporadically in some old vineyards in the province of Pisa, Lucca, Massa Carrara, Grosseto, and to a lesser extent in the rest of Tuscany. In 1990 in Tuscany there were 63.58 ha, while in 2000 the area was only about 25 ha.

Agronomical performances

Vigorous and very productive variety; bud break and ripening in the third decade of September in Tuscany. It has a good tolence to plant diseases and the rottenness of the bunch. Big bunch with moderate sugar content and acidity at complete ripening.

It is mainly used for winemaking, but in small quantities it was used as table grapes. Wine color discharge of good or fair quality. Given that the vine is very productive, trials of grape thinning carried out by the Department of Agriculture, Food and Environment (University of Pisa), have made it possible to obtain a product suitable for the production of interesting young balanced wines with varietal footprint characterized by floral aromas (Ducci et al., 2011; 2012). It can therefore envisage an interest in harmonic wines of moderate alcohol content. The grape variety is used for the production of PDO and PGI wines from grapes harvested in the region of Tuscany.