The Palazzo Pubblico is a palace in Siena, Tuscany, central Italy. Construction began in 1297 to serve as the seat of the Republic of Siena's government, which consisted of the Podestà and Council of Nine, the elected officials who performed executive functions. The palace is of medieval and Gothic architecture, and the interior is lined with frescoes--most importantly, the collection known as The Allegory of Good and Bad Government by Ambrogio Lorenzetti.