The wine , which gained the DOC status in 1978 , and upgraded to DOCG status from the 2007 vintage , is made from of 85 % Sangiovese ( which is also the base of the tuscan wines : Chianti , Brunello di Montalcino and Vino Nobile di Montepulciano ) . The wine , which was granted DOC status in 1978 , and upgraded to DOCG status from the 2007 vintage , is made from at least 85 % Sangiovese ( which is also the basis of the tuscan wines : Chianti , Brunello di Montalcino and Vino Nobile di Montepulciano ) .