When you consider the synonym 'Peigin' or 'Peisin' (perhaps dialect form of 'Perosino'), typical of an area of Alto Monferrato between Ovada and Acqui Terme and now almost disappeared, the first mention of this grape may be that of rows "tres Perosios" planted in 1602 in the same geographic area (Prosperi et al., 2006).
Beyond this hypothesis, the first certain informations on this variety are by Count De Cardenas in the work "Delle viti italiane" by Giuseppe Acerbi (1825): he indicates this variety, without a description, in the district of Valenza (Alessandria province).
More detailed informations are provided by Giorgio Gallesio, who crossed the Alessandria area in some of his frequent study trips. Starting from 1831 we find in its travel journal recently published (1995) some information about Barbera bianca, cultivated in Bormida Valley and in the area of Novi Ligure, and Bertolino or Carica l’asino (its local synonyms) in the 'Fraschetta' of Alessandria, the plains near this town, once densely wooded.
Both the last two varieties are in fact described as with elliptical berries and Gallesio himself says about Barbera bianca he views near Novi Ligure that "its long berries makes you believe that is the Monferrato grape named Carrica l’asino" then realizing the identity of those two varieties.
Even in Demaria and Leardi work (1875), there is a description of the cultivar Bertolino of which we note the synonymy with Carica l’asino, Barbera bianca and with a variety called 'Uva ovata' near Novi Ligure.