The region of Grignan offers many choices of fairs, festivals & art festival during all year through.
See some exemples: The truffles market in Richerenches (Only 10 minutes from Grignan) taking places every Saturday from mid-November to the end of March (site)
Festival by night at Grignan's castle, every summer (this year they're playing "Tartuffe" by Moliére (site)
Festival called "La correspondance" from the 2nd to 6th of July, taking place in the whole village of Grignan.
The museum of Silk in Taulignan (site)
The jazz festival at Grignan's castle every Friday from the 7th of November to the 5th of December.
Giant Christmas crib animated,from the 7th of December to the 31st of January 09 at the collegiate church St Sauveur de Grignan.
Visits & wine tasting in many particular cellars and different co-operative productions from the area (site) - (site)