Castello di Fonterutoli is a historic Mazzei family wine estate in Chianti Classico, Tuscany, owned since 1435, known for its Sangiovese research, diverse vineyards across unique microclimates, and modern, gravity-fed winery producing benchmark wines like Chianti Classico Gran Selezione. The estate combines centuries of tradition with contemporary hospitality, featuring a wine resort, restaurant, and a focus on reflecting the region’s distinct terroirs through biodynamic practices.