The ancient red grape variety (also known as Balisca or Cocolubis) was mentioned by Pliny the Elder (23-79) and is named after the tribe of Biturigers, who settled near Bordeaux in the 1st century AD. It is said to have been imported there from present-day Spain. Even before Pliny the variety was also mentioned by Columella (1st century BC) under the name Balisca. The synonym Bidure used for Cabernet Franc gave rise to the unverifiable assumption that the Biturica is an ancestor. Equally dubious is the assumption expressed by the agronomist Lambert Joseph von Babo (1790-1862) that the goosefoot, which was formerly widespread in the Palatinate, is identical. Greek ampelographers assumed that the native variety Volitsa Mavri was a descendant of Balisca (Biturica) and ancestor of Cabernet Sauvignon. However, this was disproved by the now clarified parentage of Cabernet Sauvignon. See also under antique grape varieties and antique wines.
For me, Lexicon from wein.plus is the most comprehensive and best source of information about wine currently available.Egon Mark
Diplom-Sommelier, Weinakademiker und Weinberater, Volders (Österreich)