What is "grolleau"

Grolleau can mean:

• Charles Grolleau - French literary scholar who co-wrote Anthologie des écrivains catholiques, prosateurs français du XVIIème siècle (1919) with Henri Brémond.
• Grolleau (hamlet) - a hamlet in the French commune of La Jarrie
• Grolleau (grape) - a French red wine grape

Grolleau or Grolleau noir is a red French wine grape variety that is grown primarily in the Loire Valley of France. The name is derived from the French word grolle, meaning " crow" and is said to reflect the deep black berries of the Grolleau vine. The grape is most commonly made into rosé wine, particularly in the Anjou region. Grolleau wines tend to low alcohol content and relatively high acidity.