Original: The complete list of the nine actual and theoretical varieties reads Pinot Noir, Pinot Meunier, Chardonnay, Pinot Blanc, Arbanne, Petit Meslier, Pinot gris (in Champagne named Fromenteau), Pinot de juillet and Pinot rosé.
Simplified: They can be made from white Chardonnay grapes, or red Pinot Noir or Pinot Meunier grapes.