In 1716 Cosimo III de' Medici, Grand Duke of Tuscany issued an edict legislating that the three villages of the Lega del Chianti (Castellina in Chianti, Gaiole in Chianti and Radda in Chianti) as well as the village of Greve and a 2 miles of hillside north of Greve near Spedaluzzo as the only officially recognised producers of Chianti.