Roquefort is a pungent ewe's-milk blue cheese from the south of France, and one of the most famous of all French cheeses. Though similar cheeses are produced elsewhere, European law dictates that only those cheeses aged in the natural Cambalou caves of Roquefort-sur-Soulzon may bear the name Roquefort, as it has a protected designation of origin. Roquefort is sometimes known as the "King of Cheeses", a distinction that is also used for the Italian Parmigiano Reggiano, the French Brie de Meaux and the English Stilton.