The red grape variety originates from Italy. Synonyms are Pergola Rossa, S. Franc, San Francisco and Sanc. California. The parentage is unknown. However, Pergolone is also a synonym for the grape varieties Afus Ali and Olivette Noire; nothing is known about a possible genetic relationship. No stock was recorded in 2016 (Kym Anderson).
The glossary is a monumental achievement and one of the most important contributions to wine knowledge. Of all the encyclopaedias I use on the subject of wine, it is by far the most important. That was the case ten years ago and it hasn't changed since.
Andreas Essl
Autor, Modena