Cabernet Franc had a world-wind relationship with Sauvignon Blanc and the result was Cabernet Sauvignon.
Cabernet Franc is believed to have been established in the Libournais region of southwest France sometime in the 17th century, when Cardinal Richelieu transported cuttings of the vine to the Loire Valley. December 4th is the anniversary of Cardinal Richelieu’s death.
Cabernet Franc is one of the twenty most widely planted grape varieties yet it doesn’t have its own day. It is the father of Cabernet Sauvignon which does have its own day. The mother of Cabernet Sauvignon is Sauvignon Blanc which also has its own day, so it seems reasonable that Cabernet Franc get the recognition it deserves.