Sarteano is a comune (municipality) in the Province of Siena in the Italian region Tuscany, located about 100 kilometres southeast of Florence and about 60 kilometres southeast of Siena. Sarteano is particularly important from the historical point of view. Located between Val d'Orcia and Valdichiana, the area of Sarteano has been inhabited for thousands of years. For this reason, Sarteano has a very rich archeology.