The red grape variety comes from Italy. Synonyms are Bonarda, Bonarda di Gattinara, Bonarda di Rovescala, Bonarda Grossa, Bonarda Pignola, Crevatizza Rossa, Croata, Croatina Comune, Croato, Croattina, Crovattina, Crovattino, Crovattone, Crovettina, Crovettino, Karbonera, Croatina, Nebbiolo di Gattinara, Neretto, Spanna di Ghemme, Spanna-Nebbiolo, Uga del Zio, Uva delle Zia, Uva del Zio and Uva Vermiglia. Although it appears to have synonyms or morphological similarities, it must not be confused with Bonarda Piemontese, Hrvatica, Nebbiolo or Uva Rara. It was mentioned in the late 19th century in the Lombard area of Oltrepò Pavese, where it and the DOC wine made from it are called Bonarda. According to DNA analysis carried out in 1999, despite the same name meaning, there is no relationship with the Croatian variety Hrvatica. The Croatina variety was a crossing partner in the new Ervi breeding.