Chianti is filled with a variety of sub-zones, each with its own characteristics and distinguishing qualities. The Chianti Rufina area, located in the Levante Fiorentino just east of Florence, is known for its aromatic and fruity wines with higher acidity and firmer, less evolved tannins. The proximity of the Apennine mountains allows for a greater day/night temperature variation, which deepens the color of young Rufina wines and further strengthens their acidity. As early as 1716, Cosimo III de’ Medici proclaimed that the region containing the modern day Chianti Rufina was one of the four best in the area. More recently, the region has produced some of the best wines in all of Tuscany. One of the most fascinating wineries in the area is the Castello del Trebbio, an estate that dates back to the twelfth century as the former home to the Pazzi family. The highly respected wine rating entity Gambero Rosso (GR) notes that the 2003 Pazzesco—made from Sangiovese, merlot, and syrah grapes—was solid and well balanced. It also regards the Lastricato Chianti Rufina Riserva as well worth attention.