French billionaire François Pinault has purchased Château-Grillet, adding a small gem in France’s Northern Rhône Valley to his Group Artemis, which includes the first-growth Château Latour in Pauillac and Domaine d’Eugenie in Burgundy. The price of the deal was undisclosed. Château-Grillet is an 8.5-acre monopole, one of the rare micro-appellations in France, and has long been considered one of the Rhône Valley’s most prized terroirs, sitting on a steeply terraced vineyard with southeastern exposure, in the heart of the Condrieu wine-producing area.